[media] via-camera: pass correct format settings to sensor

The code attempts to maintain a "user format" and a "sensor format",
but in this case it looks like a typo is passing the user format down
to the sensor.

This was preventing display of video at anything other than 640x480.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/via-camera.c

@@ -963,7 +963,7 @@ static int viacam_do_try_fmt(struct via_camera *cam,
 
 	upix->pixelformat = f->pixelformat;
 	viacam_fmt_pre(upix, spix);
-	v4l2_fill_mbus_format(&mbus_fmt, upix, f->mbus_code);
+	v4l2_fill_mbus_format(&mbus_fmt, spix, f->mbus_code);
 	ret = sensor_call(cam, video, try_mbus_fmt, &mbus_fmt);
 	v4l2_fill_pix_format(spix, &mbus_fmt);
 	viacam_fmt_post(upix, spix);