Fetch currently loaded bluetooth name

Test: m
ROBOTEST_FILTER="BluetoothMaxConnectedAudioDevicesPreferenceControllerTest"
RunSettingsRoboTests -j40

Test: m ROBOTEST_FILTER="com.android.settings.bluetooth" RunSettingsRoboTests
Test: Open developer settings
Bug: 257158801
Change-Id: Ib40a6264d8d6908103d76b6401ddcfd3ffa7dd88
4 files changed