msm7x27a-common: update post-boot script

Change-Id: I82ba3df5ebff1c082f3f298cb78468ca2c89b364
msm7x27a-common: update lge target script

Change-Id: I428ff49b0c288176ab5009e70a559842ef30435d
bt-vendor: Add epilog op.
msm7x27a-common: Introduce hwmac binary.

hwmac binary is used to load hardware generated MAC address to drivers.

Change-Id: I51279270e0c7c76521bef6eeac023c87e5d4becf
msm7x27a-common: Use number width instead of precision width on format.

Change-Id: I515b680025a6c39781644f520f566b75097d4949
bt-vendor: Add support for BT RF power class.

Default value as 1. Possible values include 0, 1 & 2.
Set via [persist.service.bt.power].
msm7x27a-common: build power hal

Change-Id: I6ccd50a8750b95232d81150364d1ae4beb5d08c4