Drop the RCPM consumer example from the binding (LPUART device node),
because:
1. Using phandles is typical syntax, thus explaining it is not needed in
   the provider binding,
2. It has 'fsl,rcpm-wakeup' property which is not allowed by LPUART
   binding so it causes dt_binding_check warning:

   fsl,rcpm.example.dtb: serial@2950000: Unevaluated properties are not allowed ('fsl,rcpm-wakeup' was unexpected)
     from schema $id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml#

Alternatively, this property could be added to LPUART binding
(fsl-lpuart.yaml), but it looks like none of in-tree DTS use it.

Fixes: ad21e384 ("dt-bindings: soc: fsl: Convert rcpm to yaml format")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240811153507.126512-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring (Arm) <robh@kernel.org>