NS_Emulation: Support multiple NS-VC within one NSE (NS-VCG)

This is something we need to simulate more complex scenarios,
particularly in the context of frame relay.

Change-Id: If1220852785853f8a5d8de183d5053ddd6ccb958
diff --git a/library/NS_Provider_IPL4.ttcn b/library/NS_Provider_IPL4.ttcn
index 3b9fcaf..6d45fd0 100644
--- a/library/NS_Provider_IPL4.ttcn
+++ b/library/NS_Provider_IPL4.ttcn
@@ -23,7 +23,7 @@
 	var integer g_conn_id := -1;
 };
 
-function main(NSConfiguration config, charstring id) runs on NS_Provider_IPL4_CT {
+function main(NSVCConfiguration config, NSConfiguration nsconfig, charstring id) runs on NS_Provider_IPL4_CT {
 
 	/* connect socket */
 	map(self:IPL4, system:IPL4);