android: Change to CONNECTING state if CHILD_SA goes down

Unless we are disconnecting.  This currently triggers the connecting
dialog, perhaps just updating the status text would do too (when switching
from CONNECTED to CONNECTING, not from DISCONNECTED to CONNECTING).

src/frontends/android/src/org/strongswan/android/logic/CharonVpnService.java

@@ -354,7 +354,10 @@ public class CharonVpnService extends VpnService implements Runnable
 		switch (status)
 		{
 			case STATE_CHILD_SA_DOWN:
-				/* we ignore this as we use closeaction=restart */
+				if (!mIsDisconnecting)
+				{
+					setState(State.CONNECTING);
+				}
 				break;
 			case STATE_CHILD_SA_UP:
 				setState(State.CONNECTED);