staging: bcm2835-camera: make video_device const

Make this const as it is only used in a copy operation.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c

@@ -1456,7 +1456,7 @@ static const struct v4l2_file_operations camera0_fops = {
 	.mmap = vb2_fop_mmap,
 };
 
-static struct video_device vdev_template = {
+static const struct video_device vdev_template = {
 	.name = "camera0",
 	.fops = &camera0_fops,
 	.ioctl_ops = &camera0_ioctl_ops,