media: cx23885: add const to v4l2_file_operations structure

Declare v4l2_file_operations structure as const as it is only stored
in the fops field of video_device structure. This field is of type
const, so declare v4l2_file_operations structures with similar properties
as const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/cx23885/cx23885-417.c

@@ -1416,7 +1416,7 @@ static int vidioc_log_status(struct file *file, void *priv)
 	return 0;
 }
 
-static struct v4l2_file_operations mpeg_fops = {
+static const struct v4l2_file_operations mpeg_fops = {
 	.owner	       = THIS_MODULE,
 	.open           = v4l2_fh_open,
 	.release        = vb2_fop_release,