Increase GO idle time out to 5 seconds

This is needed to work well with cavium dongle and 2 seconds
was too aggressive to let a client scan and connect.

Change-Id: Id3f1e3711333365c1e90827fb92675fd5dbc49da

Author: isheriff

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

@@ -135,7 +135,7 @@ public class WifiP2pService extends IWifiP2pManager.Stub {
     private static final int DISCOVER_TIMEOUT_S = 120;
 
     /* Idle time after a peer is gone when the group is torn down */
-    private static final int GROUP_IDLE_TIME_S = 2;
+    private static final int GROUP_IDLE_TIME_S = 5;
 
     /**
      * Delay between restarts upon failure to setup connection with supplicant