[media] ths8200: Zero blanking level for RGB

Currently only RGB444 input data is supported so set to zero.
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: NMartin Bugge <marbugge@cisco.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/ths8200.c

@@ -217,8 +217,8 @@ static void ths8200_core_init(struct v4l2_subdev *sd)
 	/* Disable embedded syncs on the output by setting
 	 * the amplitude to zero for all channels.
 	 */
-	ths8200_write(sd, THS8200_DTG1_Y_SYNC_MSB, 0x2a);
-	ths8200_write(sd, THS8200_DTG1_CBCR_SYNC_MSB, 0x2a);
+	ths8200_write(sd, THS8200_DTG1_Y_SYNC_MSB, 0x00);
+	ths8200_write(sd, THS8200_DTG1_CBCR_SYNC_MSB, 0x00);
 }
 
 static void ths8200_setup(struct v4l2_subdev *sd, struct v4l2_bt_timings *bt)