ASoC: dt-bindings: mediatek,mt8188-mt6359: use common sound card

The mediatek,mt8188-mt6359 Linux sound machine driver requires the
"model" property, so binding was incomplete. Reference the common sound
card properties to fix that which also allows to remove duplicated
property definitions. Leave the relevant parts of "audio-routing"
description.

Reviewed-by: Rob Herring <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Acked-by: Trevor Wu <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/mediatek,mt8188-mt6359.yaml

···
 maintainers:
   - Trevor Wu <[e-mail]>
 
+allOf:
+  - $ref: sound-card-common.yaml#
+
 properties:
   compatible:
     enum:
       - mediatek,mt8188-mt6359-evb
       - mediatek,mt8188-nau8825
 
-  model:
-    $ref: /schemas/types.yaml#/definitions/string
-    description: User specified audio sound card name
-
   audio-routing:
-    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
     description:
-      A list of the connections between audio components. Each entry is a
-      sink/source pair of strings. Valid names could be the input or output
-      widgets of audio components, power supplies, MicBias of codec and the
-      software switch.
+      Valid names could be the input or output widgets of audio components,
+      power supplies, MicBias of codec and the software switch.
 
   mediatek,platform:
     $ref: /schemas/types.yaml#/definitions/phandle
···
     required:
       - link-name
 
-additionalProperties: false
+unevaluatedProperties: false
 
 required:
   - compatible
···
   - |
     sound {
         compatible = "mediatek,mt8188-mt6359-evb";
+        model = "MT6359-EVB";
         mediatek,platform = <&afe>;
         pinctrl-names = "default";
         pinctrl-0 = <&aud_pins_default>;