ASoC: convert Everest ES8316 binding to yaml

This patch converts Everest Semiconductor ES8316 low power audio
CODEC binding to DT schema.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200724155933.1040501-1-katsuhiro@katsuster.netSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/everest,es8316.txt

-Everest ES8316 audio CODEC
-
-This device supports both I2C and SPI.
-
-Required properties:
-
-  - compatible  : should be "everest,es8316"
-  - reg : the I2C address of the device for I2C
-
-Optional properties:
-
-  - clocks : a list of phandle, should contain entries for clock-names
-  - clock-names : should include as follows:
-         "mclk" : master clock (MCLK) of the device
-
-Example:
-
-es8316: codec@11 {
-	compatible = "everest,es8316";
-	reg = <0x11>;
-	clocks = <&clks 10>;
-	clock-names = "mclk";
-};

Documentation/devicetree/bindings/sound/everest,es8316.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/everest,es8316.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Everest ES8316 audio CODEC
+
+maintainers:
+  - Daniel Drake <drake@endlessm.com>
+  - Katsuhiro Suzuki <katsuhiro@katsuster.net>
+
+properties:
+  compatible:
+    const: everest,es8316
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: clock for master clock (MCLK)
+
+  clock-names:
+    items:
+      - const: mclk
+
+  "#sound-dai-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      es8316: codec@11 {
+        compatible = "everest,es8316";
+        reg = <0x11>;
+        clocks = <&clks 10>;
+        clock-names = "mclk";
+        #sound-dai-cells = <0>;
+      };
+    };