[media] vim2m: support expbuf

Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: NPawel Osciak <pawel@osciak.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/platform/vim2m.c

@@ -697,6 +697,7 @@ static const struct v4l2_ioctl_ops vim2m_ioctl_ops = {
 	.vidioc_querybuf	= v4l2_m2m_ioctl_querybuf,
 	.vidioc_qbuf		= v4l2_m2m_ioctl_qbuf,
 	.vidioc_dqbuf		= v4l2_m2m_ioctl_dqbuf,
+	.vidioc_expbuf		= v4l2_m2m_ioctl_expbuf,
 
 	.vidioc_streamon	= v4l2_m2m_ioctl_streamon,
 	.vidioc_streamoff	= v4l2_m2m_ioctl_streamoff,