dt-bindings: Add devicetree bindings

Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>

bindings/sound/sound-dai.yaml

@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/sound-dai.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Digital Audio Interface consumer
+
+maintainers:
+  - Rob Herring <robh@kernel.org>
+
+select: true
+
+properties:
+  sound-dai:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: A phandle plus args to digital audio interface provider(s)
+
+additionalProperties: true
+...