CEC: Add methods to get device types am: 3a19b4246f am: 4a74ccc749 am: f38c8a53f2 am: 1e75d6f116

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1577106

Change-Id: I37534df864252d732ac5e2bf120d270bbd86764c