dt-bindings: mmc: imx-esdhc: Add i.MX8DXL compatible string

Add i.MX8DXL compatible string. It also needs "fsl,imx8qm-fec" compatible.
Signed-off-by: NAbel Vesa <abel.vesa@nxp.com>
Acked-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220419113516.1827863-10-abel.vesa@nxp.comSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>

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

@@ -54,6 +54,7 @@ properties:
           - const: fsl,imx8qxp-usdhc
       - items:
           - enum:
+              - fsl,imx8dxl-usdhc
               - fsl,imx8mm-usdhc
               - fsl,imx8mn-usdhc
               - fsl,imx8mp-usdhc