cpu/cc26x0_cc13x0: fix build
cpu/cc26x0_cc13x0: fix build

miri64/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,jasonatran/RIOT,ant9000/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,miri64/RIOT,kaspar030/RIOT,authmillenon/RIOT,authmillenon/RIOT,kYc0o/RIOT,jasonatran/RIOT,authmillenon/RIOT,kYc0o/RIOT,jasonatran/RIOT,OlegHahm/RIOT,jasonatran/RIOT,miri64/RIOT,kYc0o/RIOT,OlegHahm/RIOT,ant9000/RIOT,ant9000/RIOT,ant9000/RIOT,kYc0o/RIOT,authmillenon/RIOT,jasonatran/RIOT,miri64/RIOT,authmillenon/RIOT,kaspar030/RIOT,kaspar030/RIOT,ant9000/RIOT,authmillenon/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,miri64/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,kaspar030/RIOT,kaspar030/RIOT