arm64: dts: renesas: r8a774b1: Add VIN and CSI-2 support

Add VIN and CSI-2 support to the RZ/G2N SoC specific dtsi.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Link: https://lore.kernel.org/r/1571137271-33973-1-git-send-email-biju.das@bp.renesas.com


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