V4L/DVB (8905): ov511: fix exposure sysfs attribute bug

Exposure was always 0. Thanks to sparse for finding this.

Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/ov511.c

···
 	if (!ov->dev)
 		return -ENODEV;
 	sensor_get_exposure(ov, &exp);
-	return sprintf(buf, "%d\n", exp >> 8);
+	return sprintf(buf, "%d\n", exp);
 }
 static DEVICE_ATTR(exposure, S_IRUGO, show_exposure, NULL);