Fix unregister method of AuthenticationStateListeners not worked issue

When passing an instance through IPC, the instance has to be serialized in
the sender side and be deserialized in the receiver side, means a new
instance would be created each time in the receiver side even though
it is the same instance in the sender side.

In the previous implementation, the listener instance received in the
unregister method is always different from the one received in the
register method so the unregister method never succeeded.

Flag: EXEMPT bug fixing
Bug: 424078771
Bug: 345727346
Test: Manually
Change-Id: I60eb71fba901fef5b904a595da4d5c2379c0170f