Handle losing Active Source to non-CEC device

When <Routing Change>, <Routing Information> or <Set Stream Path>
messages pointing to a different device are received Active Source
should be invalidated.

Bug: 162565747
Test: atest HdmiCecLocalDevicePlaybackTest
Change-Id: Ic62ce400a7c4faee35b2595abecbcbb1813ea562
3 files changed