dt-bindings: input: Use common 'linux,keycodes' definition

The common input schema, input.yaml, already defines 'linux,keycodes'
property. Update the users to use it.
Signed-off-by: NRob Herring <robh@kernel.org>
Acked-by: NJeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20220608211207.2058487-4-robh@kernel.orgSigned-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/iqs626a.yaml

@@ -510,6 +510,7 @@ patternProperties:
 
   "^trackpad-3x[2-3]$":
     type: object
+    $ref: input.yaml#
     description:
       Represents all channels associated with the trackpad. The channels are
       collectively active if the trackpad is defined and inactive otherwise.
@@ -678,7 +679,6 @@ patternProperties:
           Specifies the raw count filter strength during low-power mode.
 
       linux,keycodes:
-        $ref: /schemas/types.yaml#/definitions/uint32-array
         minItems: 1
         maxItems: 6
         description: |

Documentation/devicetree/bindings/input/iqs62x-keys.yaml

@@ -9,6 +9,9 @@ title: Azoteq IQS620A/621/622/624/625 Keys and Switches
 maintainers:
   - Jeff LaBundy <jeff@labundy.com>
 
+allOf:
+  - $ref: input.yaml#
+
 description: |
   The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors
   feature a variety of self-capacitive, mutual-inductive and Hall-effect sens-
@@ -30,7 +33,6 @@ properties:
       - azoteq,iqs625-keys
 
   linux,keycodes:
-    $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 1
     maxItems: 16
     description: |