Use stored power state for 2.0 devices

Power states should not be queried between devices supporting CEC 2.0.
If the local device supports CEC 2.0, the target device supports CEC 2.0
and there's a valid power state stored, use the stored value.

Bug: 179463842
Test: atest DevicePowerStatusActionTest
Change-Id: I80bfec06c1aa11c9f95590d70399593c25160897
2 files changed