Required properties:
- compatible: compatible list, contains
"qcom,msm8996-qusb2-phy" for 14nm PHY on msm8996,
+ "qcom,msm8998-qusb2-phy" for 10nm PHY on msm8998,
"qcom,sdm845-qusb2-phy" for 10nm PHY on sdm845.
- reg: offset and length of the PHY register set.