boards/stm32f3discovery: Update to match timer_init API change
boards/stm32f3discovery: Update to match timer_init API change

Ell-i/RIOT,jfischer-phytec-iot/RIOT,aeneby/RIOT,hamilton-mote/RIOT-OS,kb2ma/RIOT,Yonezawa-T2/RIOT,brettswann/RIOT,authmillenon/RIOT,neumodisch/RIOT,shady33/RIOT,Ell-i/RIOT,kaspar030/RIOT,jasonatran/RIOT,neumodisch/RIOT,backenklee/RIOT,dailab/RIOT,kb2ma/RIOT,rousselk/RIOT,roberthartung/RIOT,alignan/RIOT,jremmert-phytec-iot/RIOT,Hyungsin/RIOT-OS,OTAkeys/RIOT,plushvoxel/RIOT,x3ro/RIOT,dailab/RIOT,Yonezawa-T2/RIOT,RIOT-OS/RIOT,biboc/RIOT,toonst/RIOT,wentaoshang/RIOT,altairpearl/RIOT,hamilton-mote/RIOT-OS,ks156/RIOT,kYc0o/RIOT,gebart/RIOT,avmelnikoff/RIOT,kb2ma/RIOT,kerneltask/RIOT,adjih/RIOT,adjih/RIOT,Josar/RIOT,mtausig/RIOT,immesys/RiSyn,lazytech-org/RIOT,Hyungsin/RIOT-OS,jasonatran/RIOT,d00616/RIOT,kYc0o/RIOT,dailab/RIOT,altairpearl/RIOT,rousselk/RIOT,basilfx/RIOT,alignan/RIOT,ant9000/RIOT,attdona/RIOT,avmelnikoff/RIOT,gautric/RIOT,neiljay/RIOT,neiljay/RIOT,yogo1212/RIOT,syin2/RIOT,syin2/RIOT,dkm/RIOT,aeneby/RIOT,altairpearl/RIOT,miri64/RIOT,mtausig/RIOT,tfar/RIOT,tfar/RIOT,Josar/RIOT,smlng/RIOT,gautric/RIOT,basilfx/RIOT,LudwigKnuepfer/RIOT,LudwigOrtmann/RIOT,kYc0o/RIOT,josephnoir/RIOT,Yonezawa-T2/RIOT,thomaseichinger/RIOT,gautric/RIOT,adjih/RIOT,MohmadAyman/RIOT,Yonezawa-T2/RIOT,thomaseichinger/RIOT,neiljay/RIOT,smlng/RIOT,FrancescoErmini/RIOT,biboc/RIOT,rfuentess/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,cladmi/RIOT,x3ro/RIOT,d00616/RIOT,jbeyerstedt/RIOT-OTA-update,yogo1212/RIOT,rousselk/RIOT,altairpearl/RIOT,wentaoshang/RIOT,rousselk/RIOT,basilfx/RIOT,rajma996/RIOT,immesys/RiSyn,altairpearl/RIOT,tfar/RIOT,altairpearl/RIOT,backenklee/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,jasonatran/RIOT,jbeyerstedt/RIOT-OTA-update,aeneby/RIOT,mfrey/RIOT,lazytech-org/RIOT,Josar/RIOT,shady33/RIOT,miri64/RIOT,lazytech-org/RIOT,josephnoir/RIOT,brettswann/RIOT,roberthartung/RIOT,rousselk/RIOT,brettswann/RIOT,miri64/RIOT,alignan/RIOT,aeneby/RIOT,tfar/RIOT,Ell-i/RIOT,Josar/RIOT,asanka-code/RIOT,toonst/RIOT,adrianghc/RIOT,neiljay/RIOT,immesys/RiSyn,neumodisch/RIOT,brettswann/RIOT,shady33/RIOT,rajma996/RIOT,hamilton-mote/RIOT-OS,authmillenon/RIOT,yogo1212/RIOT,yogo1212/RIOT,asanka-code/RIOT,brettswann/RIOT,backenklee/RIOT,Hyungsin/RIOT-OS,kaspar030/RIOT,smlng/RIOT,dkm/RIOT,cladmi/RIOT,rakendrathapa/RIOT,gebart/RIOT,toonst/RIOT,plushvoxel/RIOT,adrianghc/RIOT,zhuoshuguo/RIOT,RIOT-OS/RIOT,x3ro/RIOT,MohmadAyman/RIOT,kerneltask/RIOT,brettswann/RIOT,jfischer-phytec-iot/RIOT,rfuentess/RIOT,LudwigKnuepfer/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,FrancescoErmini/RIOT,kaleb-himes/RIOT,immesys/RiSyn,tfar/RIOT,beurdouche/RIOT,malosek/RIOT,beurdouche/RIOT,A-Paul/RIOT,LudwigOrtmann/RIOT,zhuoshuguo/RIOT,jfischer-phytec-iot/RIOT,asanka-code/RIOT,LudwigOrtmann/RIOT,kb2ma/RIOT,LudwigOrtmann/RIOT,zhuoshuguo/RIOT,BytesGalore/RIOT,kbumsik/RIOT,d00616/RIOT,rajma996/RIOT,rakendrathapa/RIOT,LudwigKnuepfer/RIOT,dkm/RIOT,rakendrathapa/RIOT,katezilla/RIOT,A-Paul/RIOT,A-Paul/RIOT,gautric/RIOT,Josar/RIOT,kbumsik/RIOT,mtausig/RIOT,authmillenon/RIOT,jfischer-phytec-iot/RIOT,adrianghc/RIOT,ks156/RIOT,attdona/RIOT,kb2ma/RIOT,d00616/RIOT,josephnoir/RIOT,avmelnikoff/RIOT,asanka-code/RIOT,OTAkeys/RIOT,FrancescoErmini/RIOT,wentaoshang/RIOT,wentaoshang/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,malosek/RIOT,Yonezawa-T2/RIOT,kerneltask/RIOT,TobiasFredersdorf/RIOT,kaspar030/RIOT,rajma996/RIOT,jremmert-phytec-iot/RIOT,lazytech-org/RIOT,TobiasFredersdorf/RIOT,miri64/RIOT,kaspar030/RIOT,gebart/RIOT,shady33/RIOT,jasonatran/RIOT,LudwigOrtmann/RIOT,cladmi/RIOT,yogo1212/RIOT,rakendrathapa/RIOT,rfuentess/RIOT,syin2/RIOT,plushvoxel/RIOT,x3ro/RIOT,plushvoxel/RIOT,beurdouche/RIOT,kbumsik/RIOT,josephnoir/RIOT,ks156/RIOT,beurdouche/RIOT,thomaseichinger/RIOT,adrianghc/RIOT,gebart/RIOT,alignan/RIOT,kerneltask/RIOT,malosek/RIOT,attdona/RIOT,katezilla/RIOT,OlegHahm/RIOT,d00616/RIOT,RIOT-OS/RIOT,basilfx/RIOT,backenklee/RIOT,dkm/RIOT,ks156/RIOT,OTAkeys/RIOT,LudwigKnuepfer/RIOT,katezilla/RIOT,authmillenon/RIOT,jremmert-phytec-iot/RIOT,attdona/RIOT,wentaoshang/RIOT,mfrey/RIOT,biboc/RIOT,Hyungsin/RIOT-OS,RIOT-OS/RIOT,rakendrathapa/RIOT,neumodisch/RIOT,gautric/RIOT,LudwigKnuepfer/RIOT,miri64/RIOT,jfischer-phytec-iot/RIOT,kaleb-himes/RIOT,roberthartung/RIOT,cladmi/RIOT,kaspar030/RIOT,jbeyerstedt/RIOT-OTA-update,neiljay/RIOT,immesys/RiSyn,plushvoxel/RIOT,LudwigOrtmann/RIOT,BytesGalore/RIOT,zhuoshuguo/RIOT,neumodisch/RIOT,FrancescoErmini/RIOT,asanka-code/RIOT,jremmert-phytec-iot/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,dkm/RIOT,hamilton-mote/RIOT-OS,gebart/RIOT,ant9000/RIOT,adrianghc/RIOT,ant9000/RIOT,lazytech-org/RIOT,MohmadAyman/RIOT,mtausig/RIOT,zhuoshuguo/RIOT,rakendrathapa/RIOT,jbeyerstedt/RIOT-OTA-update,rajma996/RIOT,katezilla/RIOT,kaleb-himes/RIOT,roberthartung/RIOT,smlng/RIOT,toonst/RIOT,d00616/RIOT,syin2/RIOT,beurdouche/RIOT,authmillenon/RIOT,mtausig/RIOT,adjih/RIOT,dailab/RIOT,josephnoir/RIOT,avmelnikoff/RIOT,malosek/RIOT,avmelnikoff/RIOT,attdona/RIOT,immesys/RiSyn,ks156/RIOT,zhuoshuguo/RIOT,jremmert-phytec-iot/RIOT,TobiasFredersdorf/RIOT,OTAkeys/RIOT,biboc/RIOT,jbeyerstedt/RIOT-OTA-update,FrancescoErmini/RIOT,authmillenon/RIOT,cladmi/RIOT,rousselk/RIOT,roberthartung/RIOT,kbumsik/RIOT,syin2/RIOT,MohmadAyman/RIOT,shady33/RIOT,jremmert-phytec-iot/RIOT,malosek/RIOT,katezilla/RIOT,A-Paul/RIOT,OlegHahm/RIOT,thomaseichinger/RIOT,wentaoshang/RIOT,TobiasFredersdorf/RIOT,OlegHahm/RIOT,MohmadAyman/RIOT,OlegHahm/RIOT,A-Paul/RIOT,shady33/RIOT,OlegHahm/RIOT,smlng/RIOT,malosek/RIOT,BytesGalore/RIOT,backenklee/RIOT,asanka-code/RIOT,hamilton-mote/RIOT-OS,Hyungsin/RIOT-OS,mfrey/RIOT,kerneltask/RIOT,TobiasFredersdorf/RIOT,BytesGalore/RIOT,kYc0o/RIOT,attdona/RIOT,x3ro/RIOT,thomaseichinger/RIOT,mfrey/RIOT,alignan/RIOT,basilfx/RIOT,rajma996/RIOT,Ell-i/RIOT,kaleb-himes/RIOT,adjih/RIOT,FrancescoErmini/RIOT,Ell-i/RIOT,toonst/RIOT,yogo1212/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,kaleb-himes/RIOT,kYc0o/RIOT,biboc/RIOT,rfuentess/RIOT,ant9000/RIOT,MohmadAyman/RIOT,OTAkeys/RIOT,mfrey/RIOT,BytesGalore/RIOT,aeneby/RIOT,jasonatran/RIOT,neumodisch/RIOT,kbumsik/RIOT,Yonezawa-T2/RIOT,dailab/RIOT,ant9000/RIOT