dt-bindings: clock: Convert brcm,bcm63xx-clocks to DT schema

Convert the Broadcom BCM63xx clock bindings to DT schema format. It's
a straight forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250521004610.1791426-1-robh@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: robherring

Documentation/devicetree/bindings/clock/brcm,bcm63xx-clocks.txt

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/brcm,bcm63xx-clocks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MIPS based BCM63XX SoCs Gated Clock Controller
+
+maintainers:
+  - Álvaro Fernández Rojas <noltari@gmail.com>
+  - Jonas Gorski <jonas.gorski@gmail.com>
+
+properties:
+  compatible:
+    enum:
+      - brcm,bcm3368-clocks
+      - brcm,bcm6318-clocks
+      - brcm,bcm6318-ubus-clocks
+      - brcm,bcm6328-clocks
+      - brcm,bcm6358-clocks
+      - brcm,bcm6362-clocks
+      - brcm,bcm6368-clocks
+      - brcm,bcm63268-clocks
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@10000004 {
+        compatible = "brcm,bcm6328-clocks";
+        reg = <0x10000004 0x4>;
+        #clock-cells = <1>;
+    };