[media] media/v4l2-ctrls: Always execute EXECUTE_ON_WRITE ctrls

Any control with V4L2_CTRL_FLAG_EXECUTE_ON_WRITE set should return
changed == true in cluster_changed.

This forces the value to be passed to the driver even if it has not
changed.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/v4l2-core/v4l2-ctrls.c

@@ -1611,6 +1611,10 @@ static int cluster_changed(struct v4l2_ctrl *master)
 
 		if (ctrl == NULL)
 			continue;
+
+		if (ctrl->flags & V4L2_CTRL_FLAG_EXECUTE_ON_WRITE)
+			changed = ctrl_changed = true;
+
 		/*
 		 * Set has_changed to false to avoid generating
 		 * the event V4L2_EVENT_CTRL_CH_VALUE