[media] videodev.h: add V4L2_CTRL_FLAG_MODIFY_LAYOUT

Add new flag to indicate that changing this control will change the
buffer/mediabus layout as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

include/uapi/linux/videodev2.h

@@ -1659,6 +1659,7 @@ struct v4l2_querymenu {
 #define V4L2_CTRL_FLAG_VOLATILE		0x0080
 #define V4L2_CTRL_FLAG_HAS_PAYLOAD	0x0100
 #define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE	0x0200
+#define V4L2_CTRL_FLAG_MODIFY_LAYOUT	0x0400
 
 /*  Query flags, to be ORed with the control ID */
 #define V4L2_CTRL_FLAG_NEXT_CTRL	0x80000000