dt-bindings: misc: google,android-pipe: Convert to DT schema

Convert the Android Goldfish QEMU Pipe binding to DT schema format.
Move the file to the misc directory as it represents a miscellaneous
communication device.
Update the example node name to 'pipe' to comply with generic node
naming standards and fix the mismatch between unit address and reg
property in the original example.

Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260113092602.3197681-3-visitorckw@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/goldfish/pipe.txt

@@ -1,17 +0,0 @@
-Android Goldfish QEMU Pipe
-
-Android pipe virtual device generated by android emulator.
-
-Required properties:
-
-- compatible : should contain "google,android-pipe" to match emulator
-- reg        : <registers mapping>
-- interrupts : <interrupt mapping>
-
-Example:
-
-	android_pipe@a010000 {
-		compatible = "google,android-pipe";
-		reg = <ff018000 0x2000>;
-		interrupts = <0x12>;
-	};

Documentation/devicetree/bindings/misc/google,android-pipe.yaml

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/google,android-pipe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Android Goldfish QEMU Pipe
+
+maintainers:
+  - Kuan-Wei Chiu <visitorckw@gmail.com>
+
+description:
+  Android QEMU pipe virtual device generated by Android emulator.
+
+properties:
+  compatible:
+    const: google,android-pipe
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    pipe@ff018000 {
+        compatible = "google,android-pipe";
+        reg = <0xff018000 0x2000>;
+        interrupts = <18>;
+    };