dt-bindings: arm: Allow 32-bit 'cpu-release-addr' values

While the DT Spec says 'cpu-release-addr' is always 64-bit, some 32-bit Arm
DTs used a 32-bit value. We're now stuck with those cases, so add uint32 as
a valid type.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220303165710.1859862-1-robh@kernel.org

Documentation/devicetree/bindings/arm/cpus.yaml

@@ -232,14 +232,14 @@ properties:
           - ti,am4372
 
   cpu-release-addr:
-    $ref: '/schemas/types.yaml#/definitions/uint64'
-
+    oneOf:
+      - $ref: '/schemas/types.yaml#/definitions/uint32'
+      - $ref: '/schemas/types.yaml#/definitions/uint64'
     description:
+      The DT specification defines this as 64-bit always, but some 32-bit Arm
+      systems have used a 32-bit value which must be supported.
       Required for systems that have an "enable-method"
         property value of "spin-table".
-      On ARM v8 64-bit systems must be a two cell
-        property identifying a 64-bit zero-initialised
-        memory location.
 
   cpu-idle-states:
     $ref: '/schemas/types.yaml#/definitions/phandle-array'