linux-phytec-fsl

[media] sh_vou: Use vou_dev instead of vou_file wherever possible

This prepares for the removal of vou_file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>