V4L/DVB (4399): Fix a typo that caused some compat stuff to not work

Config option typo:
-#ifdef CONFIG_V4L1_COMPAT
+#ifdef CONFIG_VIDEO_V4L1_COMPAT

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c
index 8656f24..2c171af 100644
--- a/drivers/media/video/saa7134/saa7134-video.c
+++ b/drivers/media/video/saa7134/saa7134-video.c
@@ -2087,7 +2087,7 @@
 		struct v4l2_format *f = arg;
 		return saa7134_try_fmt(dev,fh,f);
 	}
-#ifdef CONFIG_V4L1_COMPAT
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
 	case VIDIOCGMBUF:
 	{
 		struct video_mbuf *mbuf = arg;