dt-bindings: phy: qcom,msm8996-qmp-pcie: add missing child node schema

Add the missing the description of the PHY-provider child nodes which
were ignored when converting to DT schema.

Fixes: ccf51c1ced ("dt-bindings: phy: qcom,qmp: Convert QMP PHY bindings to yaml")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-10-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-pcie-phy.yaml

@@ -57,6 +57,55 @@ patternProperties:
   "^phy@[0-9a-f]+$":
     type: object
     description: one child node per PHY provided by this block
+    properties:
+      reg:
+        items:
+          - description: TX
+          - description: RX
+          - description: PCS
+
+      clocks:
+        items:
+          - description: PIPE clock
+
+      clock-names:
+        items:
+          - enum:
+              - pipe0
+              - pipe1
+              - pipe2
+
+      resets:
+        items:
+          - description: PHY (lane) reset
+
+      reset-names:
+        items:
+          - enum:
+              - lane0
+              - lane1
+              - lane2
+
+      "#clock-cells":
+        const: 0
+
+      clock-output-names:
+        maxItems: 1
+
+      "#phy-cells":
+        const: 0
+
+    required:
+      - reg
+      - clocks
+      - clock-names
+      - resets
+      - reset-names
+      - "#clock-cells"
+      - clock-output-names
+      - "#phy-cells"
+
+    additionalProperties: false
 
 required:
   - compatible