[CEC Configuration] Port 'power_state_change_on_active_source_lost'

1. Make use of the API in framework code
2. Store the setting in SharedPreferences under the hood

Bug: 171870484
Bug: 171958586
Test: atest HdmiCecLocalDevicePlaybackTest HdmiCecConfigTest
Change-Id: I9d469719bb1356c28eb0184e2e794a7fae8395d7