ARM: dts: msm: Add fixed regulators for select sdxlemur boards

Add fixed regulators that are used in the sdxlemur NTN3 and CPE boards.
Multiple regulator enables are tied to the same GPIO as follows:

- GPIO 105 connects to both 0.7V and 1V regulator enable    (AQR)
- GPIO 106 connects to both 1.05V and 1.8V regulator enable (QCA Napa)
- GPIO 107 connects to both 0.9 and 1V regulator enable     (NTN3)

For each of the regulators, the higher voltage has been selected for
advertising to consumers.

Change-Id: I77ce152345561d8ed6b1a668818c556db3f965af