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: Rob Herring <[e-mail]>
Acked-by: Jeff LaBundy <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

Documentation/devicetree/bindings/input/iqs626a.yaml

···
 
   "^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.
···
           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

···
 maintainers:
   - Jeff LaBundy <[e-mail]>
 
+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-
···
       - azoteq,iqs625-keys
 
   linux,keycodes:
-    $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 1
     maxItems: 16
     description: |