dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Document the QCS8300 QMP PCIe PHY Gen4 x2

Document the QMP PCIe PHY on the QCS8300 platform.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Ziyue Zhang <quic_ziyuzhan@quicinc.com>
Link: https://lore.kernel.org/r/20250310063103.3924525-2-quic_ziyuzhan@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: ziyuezhang-123

Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml

@@ -17,6 +17,7 @@ properties:
   compatible:
     enum:
       - qcom,qcs615-qmp-gen3x1-pcie-phy
+      - qcom,qcs8300-qmp-gen4x2-pcie-phy
       - qcom,sa8775p-qmp-gen4x2-pcie-phy
       - qcom,sa8775p-qmp-gen4x4-pcie-phy
       - qcom,sar2130p-qmp-gen3x2-pcie-phy
@@ -195,6 +196,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,qcs8300-qmp-gen4x2-pcie-phy
               - qcom,sa8775p-qmp-gen4x2-pcie-phy
               - qcom,sa8775p-qmp-gen4x4-pcie-phy
     then: