SGSN_Tests.cfg: fixup renaming remote_proto -> address family

In an old version of the PCUIF version 10 this field was named remote_proto
but got renamed into address_family before it was merged.

Change-Id: Ia49169afe2db2503e99b62bb55639b2aeea546f2
diff --git a/sgsn/SGSN_Tests.cfg b/sgsn/SGSN_Tests.cfg
index 26cee47..d6182eb 100644
--- a/sgsn/SGSN_Tests.cfg
+++ b/sgsn/SGSN_Tests.cfg
@@ -14,17 +14,17 @@
 [MODULE_PARAMETERS]
 SGSN_Tests.mp_nsconfig := {
 	{
-		remote_proto := AF_INET,
+		address_family := AF_INET,
 		local_ip := "127.0.0.103",
 		remote_ip := "127.0.0.10"
 	},
 	{
-		remote_proto := AF_INET,
+		address_family := AF_INET,
 		local_ip := "127.0.0.103",
 		remote_ip := "127.0.0.10"
 	},
 	{
-		remote_proto := AF_INET,
+		address_family := AF_INET,
 		local_ip := "127.0.0.103",
 		remote_ip := "127.0.0.10"
 	}