V4L/DVB (10443): cx18: Use correct line counts per field in firmware API call

The driver was incorrectly setting 0 line counts in a firmware
API call to set the maximum amount of lines per field.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index f074fdb2..a8dcc0f 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -548,10 +548,11 @@
 		/*
 		 * Number of lines for Field 1 & Field 2 according to
 		 * Documentation/video4linux/cx2341x/fw-encoder-api.txt
-		 * FIXME - currently we set this to 0 & 0 but things seem OK
+		 * Field 1 is 312 for 625 line systems in BT.656
+		 * Field 2 is 313 for 625 line systems in BT.656
 		 */
 		cx18_vapi(cx, CX18_CPU_SET_CAPTURE_LINE_NO, 3,
-			  s->handle, cx->digitizer, cx->digitizer);
+			  s->handle, 312, 313);
 
 		if (cx->v4l2_cap & V4L2_CAP_VBI_CAPTURE)
 			cx18_vbi_setup(s);