Increase idle time out to 25s

This is a work around for now. We will switch back to 5s once
the dongle is fixed

Change-Id: Ie21c2142c6a5db2cc2ae9247e42411c8daac4ff8

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 = 5;
+    private static final int GROUP_IDLE_TIME_S = 25;
 
     /**
      * Delay between restarts upon failure to setup connection with supplicant