dt-bindings: phy: qcom,qmp: clean up descriptions

Clean up the remaining descriptions by using uppercase "PHY"
consistently and dropping redundant information from the register
descriptions.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220830112923.3725-6-johan+linaro@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

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

@@ -11,7 +11,7 @@ maintainers:
   - Vinod Koul <vkoul@kernel.org>
 
 description:
-  QMP phy controller supports physical layer functionality for a number of
+  QMP PHY controller supports physical layer functionality for a number of
   controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
 
 properties:
@@ -65,8 +65,8 @@ properties:
   reg:
     minItems: 1
     items:
-      - description: Address and length of PHY's common serdes block.
-      - description: Address and length of PHY's DP_COM control block.
+      - description: serdes
+      - description: DP_COM
 
   "#address-cells":
     enum: [ 1, 2 ]