Extend SEPolicy

Change-Id: I31346f9ad31987d2b566568c91d43ab3f2b82c93
Fill out some qcom related build flags

Change-Id: Idab6edd2463a41e2cc3fbe39bfc46d9f41dc0cd4
Specify twrp RECOVERY_VARIANT

Change-Id: I1cdb807cbb01dfbaa32b79f558f31e1d95ec43ca
Use BatteryLED library for charging indicator

Change-Id: I977b680f8166964343fabb78aaf60d761ea0dd69