Fix HdmiCecLocalDevice concurrent access

Original implementation of HdmiCecLocalDevice expected only one thread
refers ActionList. The concurrent access causes system_server crash.
To enable for each thread to refer own ActionList without any conflict.

Test: Sanity Test on Android TV connected to AVR.
      Repeat screen off and on quickly.

Change-Id: I66f42dfbbd8d193f8a02d3ec5d51783149ddfeb2