avdt: handle signaling on peer failure

When peer device connects as initiator, starts signaling and does not
send open command - we abort and start signaling on our own.

Bug: 377180891
Bug: 381388684
Flag: com.android.bluetooth.flags.avdt_handle_signaling_on_peer_failure
Test: atest avatar:'A2dpTest' -v
Change-Id: If4620e7ca845594cae33a17790028d4afd7ae41b