ARM: dts: msm: Add dt entry regulator-hw-type

Add "qcom,regulator-hw-type" device tree property to
differentiate the pmic-ldo types.
This is a snapshot of dtsi files as of msm-4.14
'commit <ca4ff9398e337420b> ("fbdev: msm: Use dynamic
allocation for SID variable")'.

Change-Id: Iede9b56c546027599687051347ba8384e8b3853e