boards/microbit: optimized microbit_matrix_init()
boards/microbit: optimized microbit_matrix_init()

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