gbproxy: Enable TC_load_sharing_dl based on modulepar; set that in FR test

Change-Id: I96e8b6a1a69148f770476e87c920dc256c1d7379
Related: OS#4520
diff --git a/gbproxy/GBProxy_Tests.fr.cfg b/gbproxy/GBProxy_Tests.fr.cfg
index 7b63125..ececed9 100644
--- a/gbproxy/GBProxy_Tests.fr.cfg
+++ b/gbproxy/GBProxy_Tests.fr.cfg
@@ -12,6 +12,7 @@
 *.GBPVTY.CTRL_HOSTNAME := "127.0.0.1"
 
 [MODULE_PARAMETERS]
+GBProxy_Tests.mp_enable_load_sharing := true;
 GBProxy_Tests.mp_nsconfig_sgsn := {
 	{
 		handle_sns := false