cpu/cc2538: DEBUG fixes
cpu/cc2538: DEBUG fixes

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