Merge changes I21cffb4e,Ic583c824,I0ea73d3b,Icfc51c01 into msm-3.0

* changes:
  msm: board-8960: Enable PMIC USB OTG switch over current protection
  msm: board-8960: Support PMIC USB OTG switch over current protection
  regulator: pm8xxx-regulator: Add OCP control functionality for switches
  mfd: pmic: Add voltage switch test registers to PMIC core drivers