Completion status standardization for Android auto media
Not sure if it's new or not, but the Android Auto emulator displays an orange dot near never played items when MediaConstants.DESCRIPTION_EXTRAS_KEY_COMPLETION_STATUS
is set to MediaConstants.DESCRIPTION_EXTRAS_VALUE_COMPLETION_STATUS_NOT_PLAYED
It was only added for podcast and feel a bit strange to have only podcasts displaying that. This MR standardization this status.
cc @rhstone