bsc CBSP: allow passing guard_timeout to BSC_Tests.f_init()

An upcoming patch adds a test series (of various payload lengths) to
TC_cbsp_write_bss(), which then needs a bit longer than 30 seconds to run
through those. That test will pass a longer guard_timeout.

Change-Id: I54e1b3994074f4d0caf5b201588fce0ec41dda89
diff --git a/bsc/BSC_Tests_CBSP.ttcn b/bsc/BSC_Tests_CBSP.ttcn
index acd0b99..c44e9df 100644
--- a/bsc/BSC_Tests_CBSP.ttcn
+++ b/bsc/BSC_Tests_CBSP.ttcn
@@ -93,8 +93,8 @@
 	}
 }
 
-private function f_init() runs on cbsp_test_CT {
-	BSC_Tests.f_init();
+private function f_init(float guard_timeout := 30.0) runs on cbsp_test_CT {
+	BSC_Tests.f_init(guard_timeout := guard_timeout);
 	activate(as_IgnRSL((tr_RSL_BCCH_INFO, tr_RSL_SACCH_FILL,
 			    tr_RSL_NO_BCCH_INFO, tr_RSL_NO_SACCH_FILL,
 			    tr_RSL_MsgTypeD(?))));
@@ -106,11 +106,11 @@
 	f_cbsp_init_tail();
 }
 
-private function f_cbsp_init_server() runs on cbsp_test_CT {
+private function f_cbsp_init_server(float guard_timeout := 30.0) runs on cbsp_test_CT {
 	var ASP_Event asp_evt;
 	timer T := 10.0;
 
-	f_init();
+	f_init(guard_timeout := guard_timeout);
 	CBSP_Adapter.f_bind(mp_cbc_ip, mp_cbc_port);
 
 	T.start;