[Audiosharing] Fix primary device summary in call

During call, BT stack will keep the broadcast in a hysteresis mode,
however BT stack will remove the fallback group id, which leads the
primary device summary shows "Active (media only) even though it is listening to the call.

Here we check if there is active device on LE_AUDIO
profile when the fallback group id is removed. The active device on
LE_AUDIO profile should be the primary device in call.

Test: atest
Bug: 355222285
Bug: 362714470
Flag: com.android.settingslib.flags.enable_le_audio_sharing
Change-Id: I7d32c1951aca22bbc3087985389f983eea45cc94