drivers/periph/gpio: fix #ifdef instead of #if
drivers/periph/gpio: fix #ifdef instead of #if

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