Ignore failing / unknown HDMI CEC CTS tests

Ignored tests:
- playback/HdmiCecStartupTests (failing)
- playback/HdmiCecSystemAudioControlTest (failing)
- audio/* (no device to verify tests on)

Bug: 149519706
Bug: 149530408
Bug: 162820841
Bug: 162836413
Test: atest CtsHdmiCecHostTestCases
Change-Id: Id9975a6ffc7c6826290e5d625916a6276215b476
7 files changed