ASoC: dt-bindings: qcom,sm8250: Allow up to 8 codec DAIs

Sound card on Qualcomm X1E80100 CRD board has eight DAIs in one DAI
link (for WSA speakers). Boards with older SoCs could technically have
similar setup, even if it was not observed on mainlined devices.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Link: https://msgid.link/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

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

···
         properties:
           sound-dai:
             minItems: 1
-            maxItems: 4
+            maxItems: 8
 
     required:
       - link-name