Merge changes from topic "ps 2.0 cp"
* changes:
Add power.stats to compatibility matrix
power/stats: Rename readEnergyMeters to readEnergyMeter
power/stats: Add VTS tests for power stats hal
Specify version for aidl_interface explicitly
power/stats: Adding subsystem field to Channel
power/stats: Add EnergyConsumer types
power/stats: Add EnergyConsumerAttribution interface
power/stats: Add duration field to EnergyMeasurement
power/stats: Rename PowerStats HAL
power/stats: Move PowerStats HAL 2.0 to power/stats