PCU: make f_bssgp_establish() run on BSSGP_Client_CT

This means it can be used in different/other scenarios, e.g.
with tests that use PCUIF directly.

Change-Id: I1aa5dc090aac78a85a85ac190343befb0199a093
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index b18b999..80a1bd1 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -195,10 +195,9 @@
 }
 
 /* Establish BSSGP connection to PCU */
-function f_bssgp_establish() runs on dummy_CT {
+function f_bssgp_establish() runs on BSSGP_Client_CT {
 	timer T:= 10.0;
 
-	f_init();
 	T.start
 	alt {
 	[] BSSGP[0].receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { }
@@ -386,6 +385,7 @@
 
 testcase TC_nsem() runs on dummy_CT {
 
+	f_init();
 	f_bssgp_establish();
 
 	while (true) {