ARM: dts: renesas: Use new media bus type macros

Now that a header exists with macros for the media interface bus-type
values, replace hardcoding numerical constants with the corresponding
macros in the DT sources.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220615221410.27459-6-laurent.pinchart@ideasonboard.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>