V4L/DVB (3807): Cx88-blackbird: fix typo

BLACKBIRD_FIELD1_SAA7115 was repeated.  Corrected version reads:
blackbird_api_cmd(dev, BLACKBIRD_API_SET_CAPTURE_LINES, 2, 0,
                BLACKBIRD_FIELD1_SAA7115,
                BLACKBIRD_FIELD2_SAA7115
)

Thanks-to: Valentin Zagura <puthre@gmail.com> for pointing this out.
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx88/cx88-blackbird.c

@@ -1291,7 +1291,7 @@ static int blackbird_initialize_codec(struct cx8802_dev *dev)
 	   blackbird_api_cmd(dev, IVTV_API_ASSIGN_NUM_VSYNC_LINES, 4, 0, 0x180, 0x180); */
 	blackbird_api_cmd(dev, BLACKBIRD_API_SET_CAPTURE_LINES, 2, 0,
 			BLACKBIRD_FIELD1_SAA7115,
-			BLACKBIRD_FIELD1_SAA7115
+			BLACKBIRD_FIELD2_SAA7115
 		);
 
 	/* blackbird_api_cmd(dev, IVTV_API_ASSIGN_PLACEHOLDER, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); */