dt-bindings: timer: Add missing (unevaluated|additional)Properties on child nodes

In order to ensure only documented properties are present, node schemas
must have unevaluatedProperties or additionalProperties set to false
(typically).

Signed-off-by: Rob Herring <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml

···
 patternProperties:
   '^frame@[0-9a-z]*$':
     type: object
+    additionalProperties: false
     description: A timer node has up to 8 frame sub-nodes, each with the following properties.
     properties:
       frame-number:

Documentation/devicetree/bindings/timer/ingenic,tcu.yaml

···
   "^watchdog@[a-f0-9]+$":
     type: object
     $ref: /schemas/watchdog/watchdog.yaml#
+    unevaluatedProperties: false
+
     properties:
       compatible:
         oneOf:
···
   "^pwm@[a-f0-9]+$":
     type: object
     $ref: /schemas/pwm/pwm.yaml#
+    unevaluatedProperties: false
+
     properties:
       compatible:
         oneOf: