ASoC: dt-bindings: qcom,sm8250: add QRB2210 soundcard

Add soundcard compatible for QRB2210 (QCM2290) SoCs, where the older
non-audioreach audio architecture is implemented.

Cc: Srinivas Kandagatla <[e-mail]>
Signed-off-by: Alexey Klimov <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Acked-by: Rob Herring (Arm) <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

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

···
           - qcom,qcs8275-sndcard
           - qcom,qcs9075-sndcard
           - qcom,qcs9100-sndcard
+          - qcom,qrb2210-sndcard
           - qcom,qrb4210-rb2-sndcard
           - qcom,qrb5165-rb5-sndcard
           - qcom,sc7180-qdsp6-sndcard