media: video-i2c: hwmon: constify vb2_ops structure

The vb2_ops structure can be const as it is only stored in the ops
field of a vb2_queue structure and this field is const.

Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/i2c/video-i2c.c

@@ -378,7 +378,7 @@ static void stop_streaming(struct vb2_queue *vq)
 	video_i2c_del_list(vq, VB2_BUF_STATE_ERROR);
 }
 
-static struct vb2_ops video_i2c_video_qops = {
+static const struct vb2_ops video_i2c_video_qops = {
 	.queue_setup		= queue_setup,
 	.buf_prepare		= buffer_prepare,
 	.buf_queue		= buffer_queue,