[Media SASS] Display about-to-connect device names in the media player

device chip.

Bug: 206614671
Test: atest MediaMuteAwaitConnectionManagerTest
Test: manual: `adb shell am broadcast -a
com.android.systemui.action.SET_FLAG --ei id 904 --ez value 1` to flip
the flag then `adb shell cmd statusbar media-mute-await MuteAwaitDevice
start` and verify that the media player updates to show
"MuteAwaitDevice" as the device with a headphone icon. Video uploaded to
bug showing this interaction.

Change-Id: I4b3dde002904026334f03068dc3574d4b3c5fede