V4L/DVB (4417): Add support for PAL-Nc in cx24850.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx25840/cx25840-vbi.c

@@ -111,6 +111,10 @@ void cx25840_vbi_setup(struct i2c_client *client)
 			uv_lpf=0;
 			comb=0;
 			sc=0x0a425f;
+		} else if (std == V4L2_STD_PAL_Nc) {
+			uv_lpf=1;
+			comb=0x20;
+			sc=556453;
 		} else {
 			uv_lpf=1;
 			comb=0x20;