dt-bindings: mmc: renesas,sdhi: Document RZ/V2M support

Document support for the SD Card/MMC interface on the Renesas
RZ/V2M (a.k.a. r9a09g011) SoC.
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20221213230129.549968-3-fabrizio.castro.jz@renesas.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml

@@ -59,6 +59,7 @@ properties:
               - renesas,sdhi-r9a07g043 # RZ/G2UL
               - renesas,sdhi-r9a07g044 # RZ/G2{L,LC}
               - renesas,sdhi-r9a07g054 # RZ/V2L
+              - renesas,sdhi-r9a09g011 # RZ/V2M
           - const: renesas,rcar-gen3-sdhi # R-Car Gen3 or RZ/G2
       - items:
           - enum: