dt-bindings: net: Add snapshot for qrtr-gunyah bindings

qrtr-gunyah bindings snapshot from msm-pineapple branch
commit
374f1536a784("ARM: dts: msm: Add snapshot of memshare dt
documentation").

Then fix format isuues to pass YAML validation.

Change-Id: Ifb5591d83877e5454874d24827b7ebcaaba8d4bc
Signed-off-by: leihan <quic_leihan@quicinc.com>

bindings/net/qcom-qrtr-gunyah.yaml

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/qrtr-gunyah.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: QRTR Gunyah Transport Configuration
+
+maintainers:
+  - Chris Lew
+  - Lei Han <quic_leihan@quicinc.com>
+
+description: |
+  Configuration properties for the qrtr Gunyah Transport. This configuration is
+  to instantiate a transport for IPC Router protocol communication between
+  virtual machines on top of the Gunyah hypervisor.
+
+properties:
+  compatible:
+    const: qcom,qrtr-gunyah
+
+  qcom,master:
+    type: boolean
+    description: Specify if this device is on the primary virtual machine.
+
+  gunyah-label:
+    $ref: '/schemas/types.yaml#/definitions/uint32'
+    maxItems: 1
+    description: The label qrtr should request interrupts with from the gunyah
+                 doorbell driver.
+
+  shared-buffer:
+    $ref: '/schemas/types.yaml#/definitions/phandle'
+    maxItems: 1
+    description: phandle reference to a reserved memory region for sharing
+                 between vms.
+
+required:
+  - compatible
+  - gunyah-label
+  - shared-buffer
+
+additionalProperties: false
+
+examples:
+  - |
+    qrtr_shbuf: qrtr-shmem {
+        no-map;
+        reg = <0x0 0xd7ef7000 0x0 0x9000>;
+    };
+
+    qrtr-gunyah {
+        compatible = "qcom,qrtr-gunyah";
+        qcom,master;
+        gunyah-label = <0>;
+        shared-buffer = <&qrtr_shbuf>;
+    };