send connection broadcast on client disconnect

Bug: 7188646
Change-Id: I69f2c2581004b08730407930fb056cc1fe54feec

Author: isheriff

wifi/java/android/net/wifi/p2p/WifiP2pService.java

@@ -1323,6 +1323,11 @@ public boolean processMessage(Message message) {
                             if (!mAutonomousGroup && mGroup.isClientListEmpty()) {
                                 Slog.d(TAG, "Client list empty, remove non-persistent p2p group");
                                 mWifiNative.p2pGroupRemove(mGroup.getInterface());
+                                // We end up sending connection changed broadcast
+                                // when this happens at exit()
+                            } else {
+                                // Notify when a client disconnects from group
+                                sendP2pConnectionChangedBroadcast();
                             }
                         } else {
                             if (DBG) logd("Failed to remove client " + deviceAddress);