Refactor Power VTS in terms of AIDL version

Rewrite Power VTS check support using AIDL versions instead of
API versions, and change hint session tests to use a common test
fixture.

Bug: 294917526
Test: atest VtsHalPowerTargetTest
Merged-In: I3cef31fa8dc6341a47d173a13d07521bafe4a1e5
Change-Id: I3cef31fa8dc6341a47d173a13d07521bafe4a1e5
1 file changed