cc1352-launchpad: fix documentation errors.
cc1352-launchpad: fix documentation errors.

Signed-off-by: Jean Pierre Dudey <341388fa1817ca285e65547384a9727ce7f6d39a@hotmail.com>

OlegHahm/RIOT,toonst/RIOT,yogo1212/RIOT,OTAkeys/RIOT,x3ro/RIOT,jasonatran/RIOT,miri64/RIOT,RIOT-OS/RIOT,x3ro/RIOT,jasonatran/RIOT,authmillenon/RIOT,yogo1212/RIOT,yogo1212/RIOT,basilfx/RIOT,ant9000/RIOT,jasonatran/RIOT,miri64/RIOT,OlegHahm/RIOT,yogo1212/RIOT,x3ro/RIOT,basilfx/RIOT,toonst/RIOT,jasonatran/RIOT,authmillenon/RIOT,ant9000/RIOT,OTAkeys/RIOT,toonst/RIOT,RIOT-OS/RIOT,ant9000/RIOT,smlng/RIOT,smlng/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,kaspar030/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,OlegHahm/RIOT,yogo1212/RIOT,kYc0o/RIOT,authmillenon/RIOT,smlng/RIOT,kaspar030/RIOT,kaspar030/RIOT,x3ro/RIOT,basilfx/RIOT,miri64/RIOT,basilfx/RIOT,smlng/RIOT,OlegHahm/RIOT,kYc0o/RIOT,OTAkeys/RIOT,miri64/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,ant9000/RIOT,yogo1212/RIOT,kYc0o/RIOT,miri64/RIOT,jasonatran/RIOT,OlegHahm/RIOT,kYc0o/RIOT,toonst/RIOT,x3ro/RIOT,smlng/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,authmillenon/RIOT,ant9000/RIOT,toonst/RIOT,basilfx/RIOT,kaspar030/RIOT