ASoC: dt-bindings: fsl,sai: Add compatible string for i.MX93 platform

Add compatible string "fsl,imx93-sai" for i.MX93 platform
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20221027060311.2549711-2-chancel.liu@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/fsl,sai.yaml

@@ -26,6 +26,7 @@ properties:
           - fsl,imx8mq-sai
           - fsl,imx8qm-sai
           - fsl,imx8ulp-sai
+          - fsl,imx93-sai
       - items:
           - enum:
               - fsl,imx8mm-sai