[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>

drivers/media/video/cx25821/cx25821-video.c

@@ -528,7 +528,6 @@ int cx25821_video_register(struct cx25821_dev *dev)
 #endif
 	mutex_unlock(&dev->lock);
 
-
 	return 0;
 
 fail_unreg: