Refactor behavior in onHotplug()

Only call enableAudioReturnChannel when 5V status is false or true.
Since some ARC/eARC devices might trigger 5V status from  false to true when the devices are off, onNewAvrAdded() would power on the devices then.

Bug: 307811135

Change-Id: I3ec98974d9ed6729bfdf110791c7e0e9ae70e48a
2 files changed