notify core when chat room is created instead of instantiated

src/chat/chat-room/chat-room.cpp

@@ -60,7 +60,8 @@ void ChatRoomPrivate::setState (ChatRoom::State newState) {
 	L_Q();
 	if (newState != state) {
 		state = newState;
-		if (state == ChatRoom::State::Instantiated)
+		if (state == ChatRoom::State::Created)
+			// TODO : Rename from instatiated to created.
 			linphone_core_notify_chat_room_instantiated(q->getCore()->getCCore(), L_GET_C_BACK_PTR(q));
 		notifyStateChanged();
 	}