Tuna: overwork liblights

This commit does several things:

- fix sometimes wonky notification LED
- enable battery LED
- battery LED can be turned off and on, as well color change
  for low, normal, full loaded state
- abillity to enable blink on low battery

cheers

Change-Id: I3e9ea25aef48bba80a57517630db09679371b460

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml
Tuna: add fcharge overlay

Change-Id: Ifa3959f9fb31a1bab3035dde08b7af0bd030d0a1
fix up otg storage
fix missing line in enabling BLE
Revert "fix missing line in enabling BLE"

This reverts commit f4adffec05d26d1d9400d7cf81732aef3fa124f2.
add in codefor battery led and a couple other fixes