dt-bindings: arm: hisilicon,cpuctrl: Merge "hisilicon,hix5hd2-clock" into parent binding

The "hisilicon,hix5hd2-clock" is simple enough to just add it into its
parent node binding, "hisilicon,cpuctrl".

This fixes a warning that "hisilicon,hix5hd2-clock" is missing a schema.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230707210700.869060-1-robh@kernel.org
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: robherring

Documentation/devicetree/bindings/arm/hisilicon/controller/cpuctrl.yaml

@@ -29,6 +29,26 @@ properties:
 
   ranges: true
 
+patternProperties:
+  "^clock@[0-9a-f]+$":
+    type: object
+    additionalProperties: false
+
+    properties:
+      compatible:
+        const: hisilicon,hix5hd2-clock
+
+      reg:
+        maxItems: 1
+
+      "#clock-cells":
+        const: 1
+
+    required:
+      - compatible
+      - reg
+      - "#clock-cells"
+
 required:
   - compatible
   - reg