dt-bindings: usb: usb251xb: correct swap-dx-lanes type to uint32

The "swap-dx-lanes" was never described as uint8 in original TXT
bindings and Linux driver expects uint32. Fix the type to match Linux
driver expectation.

Fixes: fff61d4ccf3d ("dt-bindings: usb: usb251xb: Convert to YAML schema")
Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Marek Vasut <[e-mail]>
Acked-by: Conor Dooley <[e-mail]>
Reviewed-by: Richard Leitner <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/devicetree/bindings/usb/usb251xb.yaml

···
       power-on sequence to a port until the port has adequate power.
 
   swap-dx-lanes:
-    $ref: /schemas/types.yaml#/definitions/uint8-array
+    $ref: /schemas/types.yaml#/definitions/uint32-array
     description: |
       Specifies the ports which will swap the differential-pair (D+/D-),
       default is not-swapped.