dt-bindings: mmc: fsl-imx-esdhc: add NXP S32G3 support

Add a compatible string for the SDHC binding of NXP S32G3 platforms. Here
we use "nxp,s32g2-usdhc" as fallback since the s32g2-usdhc
driver works also on S32G3 platforms.
Signed-off-by: Wadim Mueller <wafgo01@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240324214329.29988-4-wafgo01@gmail.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml

@@ -91,6 +91,9 @@ properties:
           - enum:
               - fsl,imxrt1170-usdhc
           - const: fsl,imxrt1050-usdhc
+      - items:
+          - const: nxp,s32g3-usdhc
+          - const: nxp,s32g2-usdhc
 
   reg:
     maxItems: 1