Merge "CEC : Use system property to get the audio device name" am: c3808b00b6 am: ce6a7ddc0f am: 02b884c96e am: dfc0f717ae

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1404647

Change-Id: Iff820a346e5cca6ff8b61cfd8b45081848f812d7