arm64: dts: renesas: r8a77961: Add VIN and CSI-2 device nodes

Add device nodes for VIN and CSI-2 to R-Car M3-W+ r8a77961 device tree.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tested-by: LUU HOAI <hoai.luu.ub@renesas.com>
Link: https://lore.kernel.org/r/20210312131020.1747344-1-niklas.soderlund+renesas@ragnatech.se


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