dt-bindings: phy: qcom,ipq8074-qmp-pcie: Document the IPQ9574 QMP PCIe PHYs

Document the QMP PCIe PHYs on IPQ9574 platform.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: devi priya <quic_devipriy@quicinc.com>
Link: https://lore.kernel.org/r/20240516032436.2681828-2-quic_devipriy@quicinc.com


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