media: v4l: uapi: Add user control base for DW100 controls

Add a control base for DW100 driver controls, and reserve 16 controls.
Signed-off-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

include/uapi/linux/v4l2-controls.h

@@ -225,6 +225,12 @@ enum v4l2_colorfx {
  */
 #define V4L2_CID_USER_ISL7998X_BASE		(V4L2_CID_USER_BASE + 0x1180)
 
+/*
+ * The base for DW100 driver controls.
+ * We reserve 16 controls for this driver.
+ */
+#define V4L2_CID_USER_DW100_BASE		(V4L2_CID_USER_BASE + 0x1190)
+
 /* MPEG-class control IDs */
 /* The MPEG controls are applicable to all codec controls
  * and the 'MPEG' part of the define is historical */