V4L/DVB (12511): V4L2: add a new V4L2_CID_BAND_STOP_FILTER integer control

Add a new V4L2_CID_BAND_STOP_FILTER integer control, which either switches the
band-stop filter off, or sets it to a certain strength.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

include/linux/videodev2.h

@@ -910,9 +910,10 @@ enum v4l2_colorfx {
 	V4L2_COLORFX_SEPIA	= 2,
 };
 #define V4L2_CID_AUTOBRIGHTNESS			(V4L2_CID_BASE+32)
+#define V4L2_CID_BAND_STOP_FILTER		(V4L2_CID_BASE+33)
 
 /* last CID + 1 */
-#define V4L2_CID_LASTP1                         (V4L2_CID_BASE+33)
+#define V4L2_CID_LASTP1                         (V4L2_CID_BASE+34)
 
 /*  MPEG-class control IDs defined by V4L2 */
 #define V4L2_CID_MPEG_BASE 			(V4L2_CTRL_CLASS_MPEG | 0x900)