NS_Emulation: Add minimal support for SGSN-side SNS handling

Change-Id: I1edf739d6fd39478f662a28a7d9334ca51c270a3
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index a2e93c0..8b639e6 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -51,7 +51,9 @@
 			remote_udp_port := 23000,
 			remote_ip := "127.0.0.1",
 			nsvci := 97,
-			nsei := 96
+			nsei := 96,
+			role_sgsn := false,
+			handle_sns := false
 		},
 		{
 			local_udp_port := 21011,
@@ -59,7 +61,9 @@
 			remote_udp_port := 23000,
 			remote_ip := "127.0.0.1",
 			nsvci := 98,
-			nsei := 97
+			nsei := 97,
+			role_sgsn := false,
+			handle_sns := false
 		},
 		{
 			local_udp_port := 21012,
@@ -67,7 +71,9 @@
 			remote_udp_port := 23000,
 			remote_ip := "127.0.0.1",
 			nsvci := 99,
-			nsei := 98
+			nsei := 98,
+			role_sgsn := false,
+			handle_sns := false
 		}
 	};
 };