dt-bindings: serial: renesas,rsci: Document RZ/V2H(P) and RZ/V2N SoCs

Document the serial communication interface (RSCI) used on the Renesas
RZ/V2H(P) (R9A09G057) and RZ/V2N (R9A09G056) SoCs. These SoCs integrate
the same RSCI IP block as the RZ/G3E (R9A09G047), so the RZ/G3E
compatible is used as a fallback for both.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251222162909.155279-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: prabhakarlad

Documentation/devicetree/bindings/serial/renesas,rsci.yaml

@@ -17,6 +17,12 @@ properties:
           - renesas,r9a09g047-rsci # RZ/G3E
           - renesas,r9a09g077-rsci # RZ/T2H
 
+      - items:
+          - enum:
+              - renesas,r9a09g056-rsci # RZ/V2N
+              - renesas,r9a09g057-rsci # RZ/V2H(P)
+          - const: renesas,r9a09g047-rsci
+
       - items:
           - const: renesas,r9a09g087-rsci # RZ/N2H
           - const: renesas,r9a09g077-rsci # RZ/T2H