dt-bindings: phy: qcom,ipq8074-qmp-pcie: Document the IPQ5424 QMP PCIe PHYs

Document the PCIe phy on the IPQ5424 platform using the
IPQ9574 bindings as a fallback, since the PCIe phy on the
IPQ5424 is similar to IPQ9574.

Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241213134950.234946-3-quic_mmanikan@quicinc.com


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