sys: net: ieee802154: add fallthrough comment
sys: net: ieee802154: add fallthrough comment

LudwigOrtmann/RIOT,mtausig/RIOT,A-Paul/RIOT,cladmi/RIOT,x3ro/RIOT,kaspar030/RIOT,Josar/RIOT,toonst/RIOT,neiljay/RIOT,adjih/RIOT,yogo1212/RIOT,adrianghc/RIOT,authmillenon/RIOT,x3ro/RIOT,yogo1212/RIOT,lazytech-org/RIOT,BytesGalore/RIOT,smlng/RIOT,avmelnikoff/RIOT,kbumsik/RIOT,immesys/RiSyn,aeneby/RIOT,Josar/RIOT,LudwigOrtmann/RIOT,authmillenon/RIOT,gebart/RIOT,smlng/RIOT,RIOT-OS/RIOT,mfrey/RIOT,toonst/RIOT,basilfx/RIOT,Josar/RIOT,josephnoir/RIOT,LudwigOrtmann/RIOT,mfrey/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,LudwigOrtmann/RIOT,ks156/RIOT,mfrey/RIOT,kaspar030/RIOT,biboc/RIOT,neiljay/RIOT,lazytech-org/RIOT,LudwigKnuepfer/RIOT,toonst/RIOT,biboc/RIOT,neiljay/RIOT,beurdouche/RIOT,OlegHahm/RIOT,rfuentess/RIOT,x3ro/RIOT,aeneby/RIOT,cladmi/RIOT,smlng/RIOT,BytesGalore/RIOT,A-Paul/RIOT,yogo1212/RIOT,josephnoir/RIOT,beurdouche/RIOT,LudwigOrtmann/RIOT,x3ro/RIOT,kbumsik/RIOT,adrianghc/RIOT,OTAkeys/RIOT,mfrey/RIOT,basilfx/RIOT,ks156/RIOT,beurdouche/RIOT,immesys/RiSyn,LudwigOrtmann/RIOT,avmelnikoff/RIOT,x3ro/RIOT,ks156/RIOT,adrianghc/RIOT,immesys/RiSyn,ant9000/RIOT,hamilton-mote/RIOT-OS,A-Paul/RIOT,kbumsik/RIOT,authmillenon/RIOT,kYc0o/RIOT,josephnoir/RIOT,roberthartung/RIOT,roberthartung/RIOT,adjih/RIOT,OTAkeys/RIOT,roberthartung/RIOT,miri64/RIOT,mtausig/RIOT,toonst/RIOT,ks156/RIOT,neiljay/RIOT,avmelnikoff/RIOT,jasonatran/RIOT,josephnoir/RIOT,OTAkeys/RIOT,adrianghc/RIOT,gebart/RIOT,authmillenon/RIOT,hamilton-mote/RIOT-OS,gebart/RIOT,miri64/RIOT,aeneby/RIOT,lazytech-org/RIOT,jasonatran/RIOT,immesys/RiSyn,basilfx/RIOT,hamilton-mote/RIOT-OS,jasonatran/RIOT,basilfx/RIOT,OlegHahm/RIOT,miri64/RIOT,OlegHahm/RIOT,roberthartung/RIOT,mtausig/RIOT,aeneby/RIOT,biboc/RIOT,josephnoir/RIOT,hamilton-mote/RIOT-OS,smlng/RIOT,miri64/RIOT,A-Paul/RIOT,avmelnikoff/RIOT,cladmi/RIOT,OlegHahm/RIOT,cladmi/RIOT,avmelnikoff/RIOT,authmillenon/RIOT,beurdouche/RIOT,ant9000/RIOT,A-Paul/RIOT,immesys/RiSyn,Josar/RIOT,ant9000/RIOT,rfuentess/RIOT,adrianghc/RIOT,basilfx/RIOT,kbumsik/RIOT,OTAkeys/RIOT,authmillenon/RIOT,smlng/RIOT,biboc/RIOT,rfuentess/RIOT,BytesGalore/RIOT,cladmi/RIOT,mtausig/RIOT,kaspar030/RIOT,aeneby/RIOT,ks156/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,adjih/RIOT,miri64/RIOT,gebart/RIOT,adjih/RIOT,kYc0o/RIOT,yogo1212/RIOT,jasonatran/RIOT,adjih/RIOT,ant9000/RIOT,kbumsik/RIOT,mfrey/RIOT,roberthartung/RIOT,toonst/RIOT,kYc0o/RIOT,kaspar030/RIOT,biboc/RIOT,LudwigKnuepfer/RIOT,Josar/RIOT,kYc0o/RIOT,immesys/RiSyn,LudwigKnuepfer/RIOT,LudwigKnuepfer/RIOT,gebart/RIOT,rfuentess/RIOT,mtausig/RIOT,beurdouche/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,kaspar030/RIOT,lazytech-org/RIOT,hamilton-mote/RIOT-OS,LudwigKnuepfer/RIOT,yogo1212/RIOT,rfuentess/RIOT,jasonatran/RIOT,lazytech-org/RIOT,kYc0o/RIOT,BytesGalore/RIOT,neiljay/RIOT,BytesGalore/RIOT,ant9000/RIOT,RIOT-OS/RIOT