dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Document the X1E80100 QMP PCIe PHY Gen4 x4

The sixth PCIe instance on X1E80100 can be used in either 4-lane mode or
2-lane mode. Document the 4-lane mode as a separate compatible.
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20240823-x1e80100-phy-add-gen4x4-v3-1-b7765631ca01@linaro.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

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

@@ -40,6 +40,7 @@ properties:
       - qcom,sm8650-qmp-gen4x2-pcie-phy
       - qcom,x1e80100-qmp-gen3x2-pcie-phy
       - qcom,x1e80100-qmp-gen4x2-pcie-phy
+      - qcom,x1e80100-qmp-gen4x4-pcie-phy
 
   reg:
     minItems: 1
@@ -118,6 +119,7 @@ allOf:
           contains:
             enum:
               - qcom,sc8280xp-qmp-gen3x4-pcie-phy
+              - qcom,x1e80100-qmp-gen4x4-pcie-phy
     then:
       properties:
         reg:
@@ -169,6 +171,7 @@ allOf:
               - qcom,sc8280xp-qmp-gen3x1-pcie-phy
               - qcom,sc8280xp-qmp-gen3x2-pcie-phy
               - qcom,sc8280xp-qmp-gen3x4-pcie-phy
+              - qcom,x1e80100-qmp-gen4x4-pcie-phy
     then:
       properties:
         clocks: