ASoC: dt-bindings: qcom,sm8250: add SM8550 sound card

Add sound card for SM8550, which as of now looks fully compatible with
SM8450.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231106180422.170492-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/qcom,sm8250.yaml

@@ -21,6 +21,10 @@ properties:
               - lenovo,yoga-c630-sndcard
               - qcom,db845c-sndcard
           - const: qcom,sdm845-sndcard
+      - items:
+          - enum:
+              - qcom,sm8550-sndcard
+          - const: qcom,sm8450-sndcard
       - enum:
           - qcom,apq8016-sbc-sndcard
           - qcom,msm8916-qdsp6-sndcard