Accumulate Mobile Radio and Gnss measured energy in BatteryStats

Enabled querying and processing Mobile Radio and Gnss energy consumption
in BatteryStatsExternal.
Attribute and accumulate their power deltas in BatteryStatsImpl
Utilize measured power data in MobileRadioPowerCalculator and
GnssPowerCaluclulator.

Bug: 174818228
Test: atest GnssPowerCalculatorTest
Test: atest MobileRadioPowerCalculatorTest
Test: BatteryStatsExternalWorkerTest
Change-Id: If062033ff3c8cff20842be2cd92b04f6cb981366