[media] v4l2-ioctl: add priority handling support

Drivers that use v4l2_fh can now use the core framework support of g/s_priority.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index b686da5..d34a326 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -1795,7 +1795,8 @@
 	return 0;
 }
 
-static long ivtv_default(struct file *file, void *fh, int cmd, void *arg)
+static long ivtv_default(struct file *file, void *fh, bool valid_prio,
+			 int cmd, void *arg)
 {
 	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;