dt-bindings: phy: qcom,qmp: fix child node description

Fix the incorrect description of the child nodes which claimed that one
node is required per lane rather than per PHY.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-5-johan+linaro@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

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

@@ -102,9 +102,7 @@ properties:
 patternProperties:
   "^phy@[0-9a-f]+$":
     type: object
-    description:
-      Each device node of QMP phy is required to have as many child nodes as
-      the number of lanes the PHY has.
+    description: one child node per PHY provided by this block
 
 required:
   - compatible