BTS_Tests: call f_shutdown() in TC_speech_no_rtp_tch[fh]

We need to call f_shutdown() to properly terminate all components.
All (at least speech related) testcases do this function call.

Change-Id: Ib706fe3d9901f9cd1a0efa7d9ffd3b5b8a4472d7
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 9482561..2989cb8 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -8291,6 +8291,8 @@
 	pars := valueof(t_Pars(ts_RslChanNr_Bm(1), ts_RSL_ChanMode(RSL_CHRT_TCH_F, RSL_CMOD_SP_GSM1)));
 	vc_conn := f_start_handler(refers(f_TC_speech_no_rtp), pars);
 	vc_conn.done;
+
+	Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
 }
 testcase TC_speech_no_rtp_tchh() runs on test_CT {
 	var ConnHdlr vc_conn;
@@ -8302,6 +8304,8 @@
 	pars := valueof(t_Pars(ts_RslChanNr_Lm(5, 0), ts_RSL_ChanMode(RSL_CHRT_TCH_H, RSL_CMOD_SP_GSM1)));
 	vc_conn := f_start_handler(refers(f_TC_speech_no_rtp), pars);
 	vc_conn.done;
+
+	Misc_Helpers.f_shutdown(__BFILE__, __LINE__);
 }
 
 /* Verify handling of Downlink and Uplink speech frames */