Update connected device summary

* Add dispatchAudioModeChanged() in CachedBluetoothDeviceManager for notify
  CacheBluetoothDevice to update their summary
* Add 5 combination that used to show the summary of CacheBluetoothDevice
  case 1: device battery not unknown and is a active device
          ex: show summary as "Active, 100% battery"
  case 2: device battery unkonwn and is a active device
          ex: show summary as "Active"
  case 3: device battery not unknown and not a active device
          ex: show summary as "100% battery"
  case 4: device battery unkonwn and not a active device
          ex: not show the summary
  case 5: device is in bonding state
          ex: show summary as "Pairing..."

Bug: 78318415
Test: make -j50 RunSettingsLibRoboTests
Change-Id: I70bf5386ff045ef4f07fb86fbdc8b943befc634c