sgsn: increase the timeout of some TC

Because of multiple BSSGP connections, the tests need more time to complete.

Change-Id: I12baf4b2425d0d862755d03d16127b18968e28f2
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 1453456..66319b5 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -1948,14 +1948,14 @@
 	execute( TC_attach_closed() );
 	execute( TC_attach_no_imei_response() );
 	execute( TC_attach_no_imsi_response() );
-	execute( TC_attach_closed_add_vty(), 10.0 );
-	execute( TC_attach_check_subscriber_list(), 10.0 );
-	execute( TC_attach_detach_check_subscriber_list(), 10.0 );
+	execute( TC_attach_closed_add_vty(), 20.0 );
+	execute( TC_attach_check_subscriber_list(), 20.0 );
+	execute( TC_attach_detach_check_subscriber_list(), 20.0 );
 	execute( TC_attach_check_complete_resend() );
-	execute( TC_hlr_location_cancel_request_update(), 10.0 );
-	execute( TC_hlr_location_cancel_request_withdraw(), 10.0 );
-	execute( TC_hlr_location_cancel_request_unknown_subscriber_withdraw(), 10.0 );
-	execute( TC_hlr_location_cancel_request_unknown_subscriber_update(), 10.0 );
+	execute( TC_hlr_location_cancel_request_update(), 20.0 );
+	execute( TC_hlr_location_cancel_request_withdraw(), 20.0 );
+	execute( TC_hlr_location_cancel_request_unknown_subscriber_withdraw(), 20.0 );
+	execute( TC_hlr_location_cancel_request_unknown_subscriber_update(), 20.0 );
 	execute( TC_rau_unknown() );
 	execute( TC_attach_rau() );
 	execute( TC_attach_rau_a_a() );