[media] omap_vout: Add DVI display type support

[media] omap_vout: Add DVI display type support

Since the introduction of the new OMAP DSS DVI connector driver in
commit 3e0e9599b6a8935d3ef45a6b644cf61c60781e75 ("OMAPDSS: Add new DVI
Connector driver"), DVI outputs report a new display type of
OMAP_DISPLAY_TYPE_DVI instead of OMAP_DISPLAY_TYPE_DPI. Handle the new
type in the IRQ handler.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>