V4L/DVB (11316): saa7191: tuner ops wasn't set.

The tuner ops pointer wasn't set, so s_std never worked here.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/saa7191.c

@@ -597,6 +597,7 @@ static const struct v4l2_subdev_video_ops saa7191_video_ops = {
 static const struct v4l2_subdev_ops saa7191_ops = {
 	.core = &saa7191_core_ops,
 	.video = &saa7191_video_ops,
+	.tuner = &saa7191_tuner_ops,
 };
 
 static int saa7191_probe(struct i2c_client *client,