[media] v4l2-ctrls: make manual_mode_value 8 bits and check against control range

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

include/media/v4l2-ctrls.h

@@ -118,7 +118,7 @@ struct v4l2_ctrl {
 	unsigned int is_private:1;
 	unsigned int is_volatile:1;
 	unsigned int is_auto:1;
-	unsigned int manual_mode_value:5;
+	unsigned int manual_mode_value:8;
 
 	const struct v4l2_ctrl_ops *ops;
 	u32 id;