dt-bindings: reset: renesas,rst: Document r8a779g0 reset module

Document bindings for the R-Car V4H (R8A779G0) reset module.

Signed-off-by: Yoshihiro Shimoda <[e-mail]>
Acked-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Geert Uytterhoeven <[e-mail]>

Documentation/devicetree/bindings/reset/renesas,rst.yaml

···
       - renesas,r8a77995-rst      # R-Car D3
       - renesas,r8a779a0-rst      # R-Car V3U
       - renesas,r8a779f0-rst      # R-Car S4-8
+      - renesas,r8a779g0-rst      # R-Car V4H
 
   reg:
     maxItems: 1