leaudio: Speed up reconfiguration between Conversational and Media

To avoid sending Media on the CISes for CONVERSATIONAL, and also
Ringtone on the CISEs for Media, BT stack will reconfigure stream
whenever TBS calls SetInCall().

Bug: 323275279
Bug: 352686917
Test: atest bluetooth_le_audio_client_test
Flag: com.android.bluetooth.flags.leaudio_speed_up_reconfiguration_between_call

Change-Id: I5c42cd1d56a1b05244349fa555f8019d4181e234