doc: drivers/pn532: add missing ingroup
doc: drivers/pn532: add missing ingroup

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