ARM: dts: msm: gunyah: Add qtmr binding

Add qtmr binding description and example.

Change-Id: Ifbfcfc86931b38d08f6edec87d7c7983122d051c
Signed-off-by: Po-Jung Lai <quic_pojulai@quicinc.com>

bindings/soc/qcom/qcom,gh-qtmr.yaml

@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,gh-dbl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QCT Gunyah Hypervisor irq Lending Test Driver
+
+maintainers:
+  - Murali Nalajala <quic_mnalajal@quicinc.com>
+  - Satya Durga Srinivasu Prabhala <quic_satyap@quicinc.com>
+  - Po-Jung Lai <quic_pojulai@quicinc.com>
+
+description:
+  The Gunyah Hypervisor Test Driver is used to validate gunyah hypervisor
+  functionality. It includes test node for gunyah irq lending between vms.
+  Qtime timer and irq will be lended between vms.
+
+properties:
+  compatible:
+    const: qcom,gh-qtmr
+
+examples:
+  - |
+  qcom,gh-qtimer@17425000{
+    compatible = "qcom,gh-qtmr";
+    reg = <0x17425000 0x1000>;
+    reg-names = "qtmr-base";
+    interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+    interrupt-names = "qcom,qtmr-intr";
+    qcom,primary;
+  };