dt-bindings: phy: qcom,qmp-usb: add missing qcom,sc7180-qmp-usb3-phy schema

The "qcom,sc7180-qmp-usb3-phy" compatible is apparently used to describe
a combo PHY where only the USB part is used. Specifically, only a single
reset is used.

Fixes: 4ad7d7eeed3a ("dt-bindings: phy: qcom,qmp-usb3-dp: Add support for SC7180")
Fixes: 94c34600b617 ("dt-bindings: phy: qcom,qmp-usb3-dp-phy: move usb3 compatibles back to qcom,qmp-phy.yaml")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-23-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml

@@ -122,6 +122,28 @@ required:
 additionalProperties: false
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sc7180-qmp-usb3-phy
+    then:
+      properties:
+        clocks:
+          maxItems: 4
+        clock-names:
+          items:
+            - const: aux
+            - const: cfg_ahb
+            - const: ref
+            - const: com_aux
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: phy
+
   - if:
       properties:
         compatible: