ASoC: mediatek: mt8195: add model property

This patch adds the description of model property used to specify card
name from dts.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211129141057.12422-3-trevor.wu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mt8195-mt6359-rt1011-rt5682.yaml

@@ -16,6 +16,10 @@ properties:
   compatible:
     const: mediatek,mt8195_mt6359_rt1011_rt5682
 
+  model:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: User specified audio sound card name
+
   mediatek,platform:
     $ref: "/schemas/types.yaml#/definitions/phandle"
     description: The phandle of MT8195 ASoC platform.

Documentation/devicetree/bindings/sound/mt8195-mt6359-rt1019-rt5682.yaml

@@ -16,6 +16,10 @@ properties:
   compatible:
     const: mediatek,mt8195_mt6359_rt1019_rt5682
 
+  model:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: User specified audio sound card name
+
   mediatek,platform:
     $ref: "/schemas/types.yaml#/definitions/phandle"
     description: The phandle of MT8195 ASoC platform.