staging: bcm: led_control.c: fix parens/braces

Signed-off-by: NJohannes Tenschert <Johannes.Tenschert@informatik.stud.uni-erlangen.de>
Reviewed-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>