[media] cx25821-video.c: Delete empty line

Delete unnecessary empty line.

Signed-off-by: Leonid V. Fedorenchik <leonidsbox@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx25821/cx25821-video.c b/drivers/media/video/cx25821/cx25821-video.c
index 4d6907c..79c4553 100644
--- a/drivers/media/video/cx25821/cx25821-video.c
+++ b/drivers/media/video/cx25821/cx25821-video.c
@@ -528,7 +528,6 @@
 #endif
 	mutex_unlock(&dev->lock);
 
-
 	return 0;
 
 fail_unreg: