Add a new create() for BatteryStatus without battery intent

Add a new create() method for SystemUI incompatible charging event to
update the AOD string and move the similar implementation in the
Settings to the centralized BatteryUtils

Bug: N/A
Test: presubmit
Change-Id: Ief31fad50648de73e5e0a3c5138e13e0acc565c7
2 files changed