dt-bindings: mmc: fsl-imx-esdhc: add i.MXRT1170 compatible

Add i.MXRT1170 compatible string to Documentation.

Cc: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221107071511.2764628-6-Mr.Bossman075@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

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

@@ -75,6 +75,10 @@ properties:
           - const: fsl,imx8qxp-usdhc
           - const: fsl,imx7d-usdhc
         deprecated: true
+      - items:
+          - enum:
+              - fsl,imxrt1170-usdhc
+          - const: fsl,imxrt1050-usdhc
 
   reg:
     maxItems: 1