ASoC: dt-bindings: qcom,sm8250: Add sc7180-qdsp6-sndcard

sc7180 can make use of the adsp-baked soundcard, add relevant compatible
to the documentation.

Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231020-sc7180-qdsp-sndcard-v1-1-157706b7d06f@trvn.ru
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: TravMurav

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

@@ -25,6 +25,7 @@ properties:
           - qcom,apq8016-sbc-sndcard
           - qcom,msm8916-qdsp6-sndcard
           - qcom,qrb5165-rb5-sndcard
+          - qcom,sc7180-qdsp6-sndcard
           - qcom,sc8280xp-sndcard
           - qcom,sdm845-sndcard
           - qcom,sm8250-sndcard