V4L/DVB (4628): Fix VIDIOC_ENUMSTD ioctl in videodev.c

Do not return -EINVAL for index=0 in VIDIOC_ENUMSTD, because it is a
valid index

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 2299e29..26e7ea2 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -836,7 +836,7 @@
 			break;
 		}
 
-		if (index < 0 || index >= vfd->tvnormsize) {
+		if (index<0 || index >= vfd->tvnormsize) {
 			ret=-EINVAL;
 			break;
 		}