ASoC: dt-bindings: mt2701-wm8960: Convert to dtschema

Convert mt2701-wm890 bindings from text to dtschema. This is used by
MediaTek mt7623a/n SoC.
Signed-off-by: Kartik Agarwala <agarwala.kartik@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240421033129.13076-1-agarwala.kartik@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/mediatek,mt2701-wm8960.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mediatek,mt2701-wm8960.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT2701 with WM8960 CODEC
+
+maintainers:
+  - Kartik Agarwala <agarwala.kartik@gmail.com>
+
+properties:
+  compatible:
+    const: mediatek,mt2701-wm8960-machine
+
+  mediatek,platform:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: The phandle of MT2701 ASoC platform.
+
+  audio-routing:
+    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+    description:
+      A list of the connections between audio components. Each entry is a
+      pair of strings, the first being the connection's sink, the second
+      being the connection's source.
+
+  mediatek,audio-codec:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: The phandle of the WM8960 audio codec.
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - mediatek,platform
+  - audio-routing
+  - mediatek,audio-codec
+  - pinctrl-names
+  - pinctrl-0
+
+examples:
+  - |
+    sound {
+        compatible = "mediatek,mt2701-wm8960-machine";
+        mediatek,platform = <&afe>;
+        audio-routing =
+            "Headphone", "HP_L",
+            "Headphone", "HP_R",
+            "LINPUT1", "AMIC",
+            "RINPUT1", "AMIC";
+        mediatek,audio-codec = <&wm8960>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&aud_pins_default>;
+    };

Documentation/devicetree/bindings/sound/mt2701-wm8960.txt

-MT2701 with WM8960 CODEC
-
-Required properties:
-- compatible: "mediatek,mt2701-wm8960-machine"
-- mediatek,platform: the phandle of MT2701 ASoC platform
-- audio-routing: a list of the connections between audio
-- mediatek,audio-codec: the phandles of wm8960 codec
-- pinctrl-names: Should contain only one value - "default"
-- pinctrl-0: Should specify pin control groups used for this controller.
-
-Example:
-
-	sound:sound {
-		compatible = "mediatek,mt2701-wm8960-machine";
-		mediatek,platform = <&afe>;
-		audio-routing =
-			"Headphone", "HP_L",
-			"Headphone", "HP_R",
-			"LINPUT1", "AMIC",
-			"RINPUT1", "AMIC";
-		mediatek,audio-codec = <&wm8960>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&aud_pins_default>;
-	};