Create Power Stats AIDL interface

Bug: 162472196
Test: m
Merged-In: I948ef2959b25d776d3b01985fea5eb695fd4fc1e
(cherry picked from commit 550e3767699c49aed28a24083c2a7985b9281430)
Change-Id: Icd029f58a7babee0ad8249087b76683d104736d5
5 files changed