gbproxy: Fix syntax error in GBProxy_Tests.fr.cfg

Follow-up fix to I96e8b6a1a69148f770476e87c920dc256c1d7379
Related: OS#4520

Change-Id: I2eb6ffb3d0dba1405692c0e885622936d65cf95a
diff --git a/gbproxy/GBProxy_Tests.fr.cfg b/gbproxy/GBProxy_Tests.fr.cfg
index ececed9..043a2db 100644
--- a/gbproxy/GBProxy_Tests.fr.cfg
+++ b/gbproxy/GBProxy_Tests.fr.cfg
@@ -12,7 +12,7 @@
 *.GBPVTY.CTRL_HOSTNAME := "127.0.0.1"
 
 [MODULE_PARAMETERS]
-GBProxy_Tests.mp_enable_load_sharing := true;
+GBProxy_Tests.mp_enable_bss_load_sharing := true;
 GBProxy_Tests.mp_nsconfig_sgsn := {
 	{
 		handle_sns := false