DIAMETER: parametrize CEA template

So far, we hard-coded the Capabilities-Exchange-Answer for
HSS emulation.  As we want to emulate other DIAMETER network
elements, let's parametrize the template as well as the respective
parameters for the emulation component.

Change-Id: Ie30ff1bac40ab3dc6058587f0586b643ff2b0cb6
diff --git a/mme/MME_Tests.ttcn b/mme/MME_Tests.ttcn
index da45485..0516809 100644
--- a/mme/MME_Tests.ttcn
+++ b/mme/MME_Tests.ttcn
@@ -219,7 +219,10 @@
 		remote_ip := mp_mme_ip,
 		remote_sctp_port := -1,
 		local_ip := mp_s6_local_ip,
-		local_sctp_port := mp_s6_local_port
+		local_sctp_port := mp_s6_local_port,
+		origin_host := "hss.localdomain",
+		origin_realm := "localdomain",
+		vendor_app_id := c_DIAMETER_3GPP_S6_AID
 	};
 	vc_DIAMETER := DIAMETER_Emulation_CT.create(id);
 	map(vc_DIAMETER:DIAMETER, system:DIAMETER_CODEC_PT);