[media] vivid: don't mention the obsolete sYCC Y'CbCr encoding

This encoding is identical to the 601 encoding. The old duplicate
SYCC define is about to be removed for use in the kernel, so remove
its use in vivid first.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/vivid/vivid-ctrls.c

@@ -761,7 +761,7 @@ static const char * const vivid_ctrl_ycbcr_enc_strings[] = {
 	"Rec. 709",
 	"xvYCC 601",
 	"xvYCC 709",
-	"sYCC",
+	"",
 	"BT.2020",
 	"BT.2020 Constant Luminance",
 	"SMPTE 240M",
@@ -773,6 +773,7 @@ static const struct v4l2_ctrl_config vivid_ctrl_ycbcr_enc = {
 	.id = VIVID_CID_YCBCR_ENC,
 	.name = "Y'CbCr Encoding",
 	.type = V4L2_CTRL_TYPE_MENU,
+	.menu_skip_mask = 1 << 5,
 	.max = ARRAY_SIZE(vivid_ctrl_ycbcr_enc_strings) - 2,
 	.qmenu = vivid_ctrl_ycbcr_enc_strings,
 };