NS_Emulation: support multiple instances at the same time

The NS_Emulation has configuration values hardcoded or bound
to module parameters which prevents multiple instances.
Replace the module parameter based configuration with configuration
given when starting the NS_Emaulation.

Change-Id: I9128f9ad5c372779c38799269393137ba52576cd
diff --git a/pcu/PCU_Tests.cfg b/pcu/PCU_Tests.cfg
index 20de54c..7e0b9f2 100644
--- a/pcu/PCU_Tests.cfg
+++ b/pcu/PCU_Tests.cfg
@@ -11,12 +11,15 @@
 #mp_local_udp_port := 23000
 #mp_remote_ip := "192.168.100.196"
 #mp_remote_udp_port := 21000
-NS_Emulation.mp_local_ip := "127.0.0.1"
-NS_Emulation.mp_local_udp_port := 23000
-NS_Emulation.mp_remote_ip := "127.0.0.1"
-NS_Emulation.mp_remote_udp_port := 23001
-NS_Emulation.mp_nsei := 1234
-NS_Emulation.mp_nsvci := 1234
+PCU_Tests.mp_nsconfig := {
+	local_ip := "127.0.0.1",
+	local_udp_port := 23000,
+	remote_ip := "127.0.0.1",
+	remote_udp_port := 23001,
+	nsvci := 1234,
+	nsei := 1234
+}
+
 PCU_Tests.mp_gb_cfg := {
 	nsei := 1234,
 	bvci := 1234,