init: add lpm charger support

Change-Id: I6e8fa4b375b41525ef3729d0b09a4597b61ce5c8
qcom-fm: Add proper permission for FM to get/set property variables

Allow FM Process to set and get the system property variables
specific for FM operation.

Adapted by: Giovanni Santini <giovannisantini93@yahoo.it>

Change-Id: Ia3db14920aa77f681733e0a6eed6976dd6b22f5b