usbdev_mock: Uncrustified and fixed static-check issues
usbdev_mock: Uncrustified and fixed static-check issues

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