tests: fixed Makefile for test_ipc_pingpong
tests: fixed Makefile for test_ipc_pingpong

tdautc19841202/RIOT,alignan/RIOT,khhhh/RIOT,LudwigKnuepfer/RIOT,luciotorre/RIOT,malosek/RIOT,fnack/RIOT,thomaseichinger/RIOT,gbarnett/RIOT,plushvoxel/RIOT,asanka-code/RIOT,syin2/RIOT,arvindpdmn/RIOT,RubikonAlpha/RIOT,toonst/RIOT,l3nko/RIOT,kbumsik/RIOT,EmuxEvans/RIOT,jhollister/RIOT,d00616/RIOT,rfswarm2/RIOT,abkam07/RIOT,rajma996/RIOT,lazytech-org/RIOT,haoyangyu/RIOT,LudwigOrtmann/RIOT,herrfz/RIOT,jferreir/RIOT,l3nko/RIOT,kbumsik/RIOT,jbeyerstedt/RIOT-OTA-update,Osblouf/RIOT,JensErdmann/RIOT,nsol-nmsu/RIOT,RIOT-OS/RIOT,mtausig/RIOT,tdautc19841202/RIOT,bartfaizoltan/RIOT,kerneltask/RIOT,ThanhVic/RIOT,smlng/RIOT,jfischer-phytec-iot/RIOT,rfswarm2/RIOT,cladmi/RIOT,FrancescoErmini/RIOT,adjih/RIOT,automote/RIOT,gebart/RIOT,mziegert/RIOT,RubikonAlpha/RIOT,aeneby/RIOT,toonst/RIOT,basilfx/RIOT,rajma996/RIOT,stevenj/RIOT,tfar/RIOT,gebart/RIOT,jferreir/RIOT,stevenj/RIOT,watr-li/RIOT,RBartz/RIOT,rfuentess/RIOT,katezilla/RIOT,chris-wood/RIOT,daniel-k/RIOT,authmillenon/RIOT,msolters/RIOT,LudwigOrtmann/RIOT,Lotterleben/RIOT,PSHIVANI/Riot-Code,jremmert-phytec-iot/RIOT,kaspar030/RIOT,dailab/RIOT,adjih/RIOT,katezilla/RIOT,patkan/RIOT,kb2ma/RIOT,aeneby/RIOT,Darredevil/RIOT,automote/RIOT,fnack/RIOT,locicontrols/RIOT,thiagohd/RIOT,asanka-code/RIOT,toonst/RIOT,Darredevil/RIOT,marcosalm/RIOT,avmelnikoff/RIOT,ntrtrung/RIOT,MonsterCode8000/RIOT,rousselk/RIOT,jbeyerstedt/RIOT-OTA-update,attdona/RIOT,asanka-code/RIOT,biboc/RIOT,RIOT-OS/RIOT,rfuentess/RIOT,shady33/RIOT,gbarnett/RIOT,MohmadAyman/RIOT,neumodisch/RIOT,emmanuelsearch/RIOT,phiros/RIOT,shady33/RIOT,AnonMall/RIOT,malosek/RIOT,benoit-canet/RIOT,kb2ma/RIOT,authmillenon/RIOT,Josar/RIOT,ks156/RIOT,bartfaizoltan/RIOT,gebart/RIOT,OlegHahm/RIOT,BytesGalore/RIOT,Darredevil/RIOT,zhuoshuguo/RIOT,Lotterleben/RIOT,Yonezawa-T2/RIOT,openkosmosorg/RIOT,Ell-i/RIOT,tdautc19841202/RIOT,yogo1212/RIOT,tdautc19841202/RIOT,herrfz/RIOT,dkm/RIOT,Lotterleben/RIOT,ant9000/RIOT,marcosalm/RIOT,yogo1212/RIOT,phiros/RIOT,1blankz7/RIOT,MohmadAyman/RIOT,cladmi/RIOT,wentaoshang/RIOT,kbumsik/RIOT,mfrey/RIOT,centurysys/RIOT,DipSwitch/RIOT,Lotterleben/RIOT,PSHIVANI/Riot-Code,rfuentess/RIOT,locicontrols/RIOT,alignan/RIOT,adjih/RIOT,kYc0o/RIOT,Lexandro92/RIOT-CoAP,kerneltask/RIOT,BytesGalore/PetersRIOT,kaleb-himes/RIOT,khhhh/RIOT,Lotterleben/RIOT,OTAkeys/RIOT,sgso/RIOT,TobiasFredersdorf/RIOT,BytesGalore/PetersRIOT,josephnoir/RIOT,jremmert-phytec-iot/RIOT,beurdouche/RIOT,Darredevil/RIOT,nsol-nmsu/RIOT,arvindpdmn/RIOT,zhuoshuguo/RIOT,dailab/RIOT,ant9000/RIOT,changbiao/RIOT,koenning/RIOT,stevenj/RIOT,AnonMall/RIOT,gebart/RIOT,alex1818/RIOT,neumodisch/RIOT,latsku/RIOT,ant9000/RIOT,emmanuelsearch/RIOT,locicontrols/RIOT,emmanuelsearch/RIOT,haoyangyu/RIOT,MonsterCode8000/RIOT,gautric/RIOT,Hyungsin/RIOT-OS,RBartz/RIOT,d00616/RIOT,BytesGalore/PetersRIOT,gbarnett/RIOT,msolters/RIOT,neiljay/RIOT,khhhh/RIOT,biboc/RIOT,ant9000/RIOT,sgso/RIOT,Yonezawa-T2/RIOT,RBartz/RIOT,robixnai/RIOT,attdona/RIOT,jfischer-phytec-iot/RIOT,BytesGalore/PetersRIOT,haoyangyu/RIOT,avmelnikoff/RIOT,openkosmosorg/RIOT,roberthartung/RIOT,hamilton-mote/RIOT-OS,jremmert-phytec-iot/RIOT,brettswann/RIOT,abp719/RIOT,DipSwitch/RIOT,kYc0o/RIOT,aeneby/RIOT,AnonMall/RIOT,sumanpanchal/RIOT,altairpearl/RIOT,abkam07/RIOT,rakendrathapa/RIOT,mziegert/RIOT,gbarnett/RIOT,rfswarm/RIOT,haoyangyu/RIOT,plushvoxel/RIOT,josephnoir/RIOT,yogo1212/RIOT,openkosmosorg/RIOT,ntrtrung/RIOT,beurdouche/RIOT,rousselk/RIOT,AnonMall/RIOT,jasonatran/RIOT,DipSwitch/RIOT,d00616/RIOT,kaspar030/RIOT,l3nko/RIOT,RIOT-OS/RIOT,rakendrathapa/RIOT,ThanhVic/RIOT,thiagohd/RIOT,ximus/RIOT,dhruvvyas90/RIOT,Lexandro92/RIOT-CoAP,A-Paul/RIOT,TobiasFredersdorf/RIOT,msolters/RIOT,FrancescoErmini/RIOT,immesys/RiSyn,rousselk/RIOT,msolters/RIOT,watr-li/RIOT,nsol-nmsu/RIOT,immesys/RiSyn,thiagohd/RIOT,aeneby/RIOT,abkam07/RIOT,zhuoshuguo/RIOT,A-Paul/RIOT,adjih/RIOT,smlng/RIOT,FrancescoErmini/RIOT,kYc0o/RIOT,brettswann/RIOT,abp719/RIOT,dhruvvyas90/RIOT,jferreir/RIOT,rousselk/RIOT,d00616/RIOT,immesys/RiSyn,hamilton-mote/RIOT-OS,binarylemon/RIOT,A-Paul/RIOT,binarylemon/RIOT,mfrey/RIOT,jbeyerstedt/RIOT-OTA-update,authmillenon/RIOT,jhollister/RIOT,rakendrathapa/RIOT,kushalsingh007/RIOT,syin2/RIOT,sumanpanchal/RIOT,jfischer-phytec-iot/RIOT,phiros/RIOT,ks156/RIOT,RIOT-OS/RIOT,1blankz7/RIOT,ntrtrung/RIOT,LudwigKnuepfer/RIOT,herrfz/RIOT-old,MarkXYang/RIOT,tfar/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,kb2ma/RIOT,ntrtrung/RIOT,beurdouche/RIOT,thiagohd/RIOT,FrancescoErmini/RIOT,rajma996/RIOT,sgso/RIOT,avmelnikoff/RIOT,zhuoshuguo/RIOT,BytesGalore/RIOT,OTAkeys/RIOT,malosek/RIOT,bartfaizoltan/RIOT,kaspar030/RIOT,attdona/RIOT,alex1818/RIOT,khhhh/RIOT,marcosalm/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,Ell-i/RIOT,zhuoshuguo/RIOT,mziegert/RIOT,JensErdmann/RIOT,immesys/RiSyn,jfischer-phytec-iot/RIOT,koenning/RIOT,khhhh/RIOT,lebrush/RIOT,jasonatran/RIOT,rfswarm/RIOT,jhollister/RIOT,smlng/RIOT,khhhh/RIOT,rfuentess/RIOT,MohmadAyman/RIOT,watr-li/RIOT,x3ro/RIOT,tdautc19841202/RIOT,kaleb-himes/RIOT,plushvoxel/RIOT,patkan/RIOT,hamilton-mote/RIOT-OS,foss-for-synopsys-dwc-arc-processors/RIOT,mtausig/RIOT,ros2/ros2_embedded_riot,OlegHahm/RIOT,biboc/RIOT,cladmi/RIOT,ros2/ros2_embedded_riot,roberthartung/RIOT,Josar/RIOT,ThanhVic/RIOT,koenning/RIOT,ximus/RIOT,centurysys/RIOT,Yonezawa-T2/RIOT,lebrush/RIOT,centurysys/RIOT,centurysys/RIOT,emmanuelsearch/RIOT,jfischer-phytec-iot/RIOT,abkam07/RIOT,DipSwitch/RIOT,mfrey/RIOT,locicontrols/RIOT,koenning/RIOT,dhruvvyas90/RIOT,adrianghc/RIOT,arvindpdmn/RIOT,RubikonAlpha/RIOT,mtausig/RIOT,MohmadAyman/RIOT,jbeyerstedt/RIOT-OTA-update,sumanpanchal/RIOT,fnack/RIOT,rfuentess/RIOT,latsku/RIOT,RBartz/RIOT,BytesGalore/PetersRIOT,EmuxEvans/RIOT,sumanpanchal/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,herrfz/RIOT,latsku/RIOT,kushalsingh007/RIOT,MonsterCode8000/RIOT,miri64/RIOT,hamilton-mote/RIOT-OS,smlng/RIOT,miri64/RIOT,d00616/RIOT,ant9000/RIOT,MarkXYang/RIOT,rfswarm/RIOT,luciotorre/RIOT,openkosmosorg/RIOT,lazytech-org/RIOT,dhruvvyas90/RIOT,l3nko/RIOT,kb2ma/RIOT,altairpearl/RIOT,robixnai/RIOT,JensErdmann/RIOT,toonst/RIOT,shady33/RIOT,benoit-canet/RIOT,locicontrols/RIOT,robixnai/RIOT,herrfz/RIOT,neiljay/RIOT,altairpearl/RIOT,BytesGalore/PetersRIOT,rakendrathapa/RIOT,neiljay/RIOT,LudwigOrtmann/RIOT,shady33/RIOT,Hyungsin/RIOT-OS,JensErdmann/RIOT,tfar/RIOT,alex1818/RIOT,Osblouf/RIOT,gautric/RIOT,ks156/RIOT,changbiao/RIOT,avmelnikoff/RIOT,msolters/RIOT,ximus/RIOT,nsol-nmsu/RIOT,Lotterleben/RIOT,l3nko/RIOT,gautric/RIOT,ros2/ros2_embedded_riot,PSHIVANI/Riot-Code,backenklee/RIOT,alignan/RIOT,josephnoir/RIOT,brettswann/RIOT,OlegHahm/RIOT,attdona/RIOT,rfswarm/RIOT,authmillenon/RIOT,Darredevil/RIOT,chris-wood/RIOT,stevenj/RIOT,rfswarm2/RIOT,dailab/RIOT,MarkXYang/RIOT,herrfz/RIOT-old,kaleb-himes/RIOT,x3ro/RIOT,altairpearl/RIOT,patkan/RIOT,TobiasFredersdorf/RIOT,MonsterCode8000/RIOT,Darredevil/RIOT,kaspar030/RIOT,plushvoxel/RIOT,daniel-k/RIOT,daniel-k/RIOT,wentaoshang/RIOT,rfswarm2/RIOT,OlegHahm/RIOT,thomaseichinger/RIOT,binarylemon/RIOT,shady33/RIOT,alignan/RIOT,syin2/RIOT,biboc/RIOT,lazytech-org/RIOT,RubikonAlpha/RIOT,thiagohd/RIOT,authmillenon/RIOT,Osblouf/RIOT,kbumsik/RIOT,A-Paul/RIOT,dhruvvyas90/RIOT,watr-li/RIOT,brettswann/RIOT,sumanpanchal/RIOT,lazytech-org/RIOT,tdautc19841202/RIOT,Josar/RIOT,latsku/RIOT,lebrush/RIOT,bartfaizoltan/RIOT,jhollister/RIOT,mtausig/RIOT,mziegert/RIOT,Osblouf/RIOT,beurdouche/RIOT,RIOT-OS/RIOT,rajma996/RIOT,arvindpdmn/RIOT,wentaoshang/RIOT,neumodisch/RIOT,Josar/RIOT,mziegert/RIOT,Ell-i/RIOT,syin2/RIOT,attdona/RIOT,MarkXYang/RIOT,kYc0o/RIOT,binarylemon/RIOT,kbumsik/RIOT,smlng/RIOT,RBartz/RIOT,1blankz7/RIOT,emmanuelsearch/RIOT,watr-li/RIOT,neiljay/RIOT,kaleb-himes/RIOT,Hyungsin/RIOT-OS,kushalsingh007/RIOT,benoit-canet/RIOT,zhuoshuguo/RIOT,jhollister/RIOT,LudwigKnuepfer/RIOT,adrianghc/RIOT,robixnai/RIOT,avmelnikoff/RIOT,sgso/RIOT,l3nko/RIOT,lebrush/RIOT,OTAkeys/RIOT,dkm/RIOT,Lotterleben/RIOT,mziegert/RIOT,RBartz/RIOT,abkam07/RIOT,x3ro/RIOT,BytesGalore/PetersRIOT,yogo1212/RIOT,dailab/RIOT,OTAkeys/RIOT,rakendrathapa/RIOT,FrancescoErmini/RIOT,daniel-k/RIOT,mfrey/RIOT,roberthartung/RIOT,fnack/RIOT,beurdouche/RIOT,arvindpdmn/RIOT,emmanuelsearch/RIOT,latsku/RIOT,jbeyerstedt/RIOT-OTA-update,BytesGalore/RIOT,phiros/RIOT,shady33/RIOT,Yonezawa-T2/RIOT,brettswann/RIOT,ros2/ros2_embedded_riot,benoit-canet/RIOT,miri64/RIOT,kerneltask/RIOT,Hyungsin/RIOT-OS,openkosmosorg/RIOT,ks156/RIOT,stevenj/RIOT,lebrush/RIOT,attdona/RIOT,openkosmosorg/RIOT,backenklee/RIOT,benoit-canet/RIOT,dhruvvyas90/RIOT,Josar/RIOT,patkan/RIOT,changbiao/RIOT,d00616/RIOT,alex1818/RIOT,benoit-canet/RIOT,altairpearl/RIOT,TobiasFredersdorf/RIOT,basilfx/RIOT,ximus/RIOT,toonst/RIOT,jremmert-phytec-iot/RIOT,lebrush/RIOT,herrfz/RIOT,abp719/RIOT,herrfz/RIOT-old,automote/RIOT,locicontrols/RIOT,malosek/RIOT,asanka-code/RIOT,gbarnett/RIOT,rfswarm/RIOT,AnonMall/RIOT,changbiao/RIOT,automote/RIOT,backenklee/RIOT,cladmi/RIOT,dkm/RIOT,rfswarm2/RIOT,abp719/RIOT,x3ro/RIOT,wentaoshang/RIOT,Hyungsin/RIOT-OS,roberthartung/RIOT,sumanpanchal/RIOT,ks156/RIOT,immesys/RiSyn,syin2/RIOT,wentaoshang/RIOT,jferreir/RIOT,centurysys/RIOT,PSHIVANI/Riot-Code,RubikonAlpha/RIOT,thiagohd/RIOT,LudwigOrtmann/RIOT,automote/RIOT,DipSwitch/RIOT,rajma996/RIOT,Lexandro92/RIOT-CoAP,kaleb-himes/RIOT,herrfz/RIOT,tfar/RIOT,jasonatran/RIOT,DipSwitch/RIOT,adjih/RIOT,ximus/RIOT,hamilton-mote/RIOT-OS,fnack/RIOT,brettswann/RIOT,gebart/RIOT,rousselk/RIOT,asanka-code/RIOT,daniel-k/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,robixnai/RIOT,EmuxEvans/RIOT,asanka-code/RIOT,miri64/RIOT,binarylemon/RIOT,watr-li/RIOT,abp719/RIOT,bartfaizoltan/RIOT,MohmadAyman/RIOT,Osblouf/RIOT,BytesGalore/RIOT,1blankz7/RIOT,neiljay/RIOT,JensErdmann/RIOT,binarylemon/RIOT,thomaseichinger/RIOT,adrianghc/RIOT,jferreir/RIOT,jasonatran/RIOT,kerneltask/RIOT,LudwigKnuepfer/RIOT,chris-wood/RIOT,yogo1212/RIOT,luciotorre/RIOT,kYc0o/RIOT,RubikonAlpha/RIOT,Lexandro92/RIOT-CoAP,lazytech-org/RIOT,Lexandro92/RIOT-CoAP,x3ro/RIOT,alex1818/RIOT,kaspar030/RIOT,jremmert-phytec-iot/RIOT,TobiasFredersdorf/RIOT,alex1818/RIOT,Lexandro92/RIOT-CoAP,dkm/RIOT,jhollister/RIOT,malosek/RIOT,OlegHahm/RIOT,phiros/RIOT,LudwigOrtmann/RIOT,dkm/RIOT,FrancescoErmini/RIOT,authmillenon/RIOT,phiros/RIOT,luciotorre/RIOT,josephnoir/RIOT,adrianghc/RIOT,LudwigKnuepfer/RIOT,sgso/RIOT,neumodisch/RIOT,kb2ma/RIOT,robixnai/RIOT,abkam07/RIOT,Ell-i/RIOT,miri64/RIOT,katezilla/RIOT,katezilla/RIOT,EmuxEvans/RIOT,rfswarm2/RIOT,arvindpdmn/RIOT,ThanhVic/RIOT,Ell-i/RIOT,chris-wood/RIOT,gautric/RIOT,Osblouf/RIOT,altairpearl/RIOT,marcosalm/RIOT,dailab/RIOT,gautric/RIOT,daniel-k/RIOT,herrfz/RIOT-old,OTAkeys/RIOT,MonsterCode8000/RIOT,cladmi/RIOT,ntrtrung/RIOT,marcosalm/RIOT,ThanhVic/RIOT,chris-wood/RIOT,BytesGalore/RIOT,nsol-nmsu/RIOT,mfrey/RIOT,herrfz/RIOT-old,biboc/RIOT,neumodisch/RIOT,plushvoxel/RIOT,ximus/RIOT,EmuxEvans/RIOT,ros2/ros2_embedded_riot,bartfaizoltan/RIOT,katezilla/RIOT,jasonatran/RIOT,abp719/RIOT,mtausig/RIOT,rfswarm/RIOT,Yonezawa-T2/RIOT,1blankz7/RIOT,AnonMall/RIOT,MarkXYang/RIOT,basilfx/RIOT,haoyangyu/RIOT,changbiao/RIOT,haoyangyu/RIOT,rajma996/RIOT,roberthartung/RIOT,1blankz7/RIOT,MarkXYang/RIOT,Yonezawa-T2/RIOT,gbarnett/RIOT,rakendrathapa/RIOT,yogo1212/RIOT,basilfx/RIOT,centurysys/RIOT,backenklee/RIOT,changbiao/RIOT,patkan/RIOT,malosek/RIOT,luciotorre/RIOT,neumodisch/RIOT,kushalsingh007/RIOT,sgso/RIOT,ntrtrung/RIOT,wentaoshang/RIOT,koenning/RIOT,ros2/ros2_embedded_riot,chris-wood/RIOT,jferreir/RIOT,kushalsingh007/RIOT,JensErdmann/RIOT,basilfx/RIOT,tfar/RIOT,koenning/RIOT,jremmert-phytec-iot/RIOT,PSHIVANI/Riot-Code,automote/RIOT,immesys/RiSyn,ThanhVic/RIOT,MohmadAyman/RIOT,patkan/RIOT,latsku/RIOT,msolters/RIOT,kushalsingh007/RIOT,alignan/RIOT,adrianghc/RIOT,ros2/ros2_embedded_riot,A-Paul/RIOT,EmuxEvans/RIOT,PSHIVANI/Riot-Code,fnack/RIOT,MonsterCode8000/RIOT,stevenj/RIOT,locicontrols/RIOT,kerneltask/RIOT,marcosalm/RIOT,rousselk/RIOT,josephnoir/RIOT,thomaseichinger/RIOT,luciotorre/RIOT,LudwigOrtmann/RIOT,backenklee/RIOT,thomaseichinger/RIOT,aeneby/RIOT