dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Document SM8550 compatible

Add the SM8550 compatible to the list.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230208183421.2874423-4-abel.vesa@linaro.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>