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 <robh@kernel.org>
Acked-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20220608211207.2058487-4-robh@kernel.org


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>