dt-bindings: arm: Limit cpus schema to only check Arm 'cpu' nodes

Matching on the 'cpus' node was a bad choice because the schema is
incorrectly applied to non-Arm cpus nodes. As we now have a common cpus
schema which checks the general structure, it is also redundant to do so
in the Arm CPU schema.

The downside is one could conceivably mix different architecture's cpu
nodes or have typos in the compatible string. The latter problem pretty
much exists for every schema.
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/arm/cpus.yaml

@@ -39,39 +39,6 @@ description: |+
   described below.
 
 properties:
-  $nodename:
-    const: cpus
-    description: Container of cpu nodes
-
-  '#address-cells':
-    enum: [1, 2]
-    description: |
-      Definition depends on ARM architecture version and configuration:
-
-      On uniprocessor ARM architectures previous to v7
-        value must be 1, to enable a simple enumeration
-        scheme for processors that do not have a HW CPU
-        identification register.
-      On 32-bit ARM 11 MPcore, ARM v7 or later systems
-        value must be 1, that corresponds to CPUID/MPIDR
-        registers sizes.
-      On ARM v8 64-bit systems value should be set to 2,
-        that corresponds to the MPIDR_EL1 register size.
-        If MPIDR_EL1[63:32] value is equal to 0 on all CPUs
-        in the system, #address-cells can be set to 1, since
-        MPIDR_EL1[63:32] bits are not used for CPUs
-        identification.
-
-  '#size-cells':
-    const: 0
-
-patternProperties:
-  '^cpu@[0-9a-f]+$':
-    type: object
-    properties:
-      device_type:
-        const: cpu
-
   reg:
     maxItems: 1
     description: |
@@ -117,8 +84,7 @@ patternProperties:
       All other bits in the reg cells must be set to 0.
 
   compatible:
-        items:
-          - enum:
+    enum:
       - arm,arm710t
       - arm,arm720t
       - arm,arm740t
@@ -302,19 +268,14 @@ patternProperties:
       While optional, it is the preferred way to get access to
       the cpu-core power-domains.
 
-    required:
+required:
   - device_type
   - reg
   - compatible
 
-    dependencies:
-      cpu-release-addr: [enable-method]
+dependencies:
   rockchip,pmu: [enable-method]
 
-required:
-  - '#address-cells'
-  - '#size-cells'
-
 examples:
   - |
     cpus {