Create wrappers for Power HAL.

Create wrappers over existing HIDL Power HALs v1.0, v1.1, and AIDL Power
HAL. All wrappers expose the same API that should be used by the
PowerManagerService.

Bug: 150878220
Test: atest powermanager_test
Change-Id: I5edba6d51d3e18c5137c87b65bc9efa6c70ba7e8
9 files changed