BSC_Tests: Also test LCLS with halfrate codecs

At the moment LCLS is only tested using GSM-FR. There are not LCLS
tests that test with GSM-HR yet. Lets make GSM-HR available and see
what happens when we run BSC_Tests_LCLS.TC_lcls_gcr_bway_connect
on HR instead of FR.

- set channelType depending on g_pars.ass_codec_list.codecElements[0]
- add testcase TC_lcls_gcr_bway_connect_hr

Related OS#1602
Change-Id: I2421519a642bdb7453ae4a9058e177845690a489
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 2a8ad5f..149d5b7 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -1735,7 +1735,7 @@
 }
 
 /* determine BSSMAP_IE_ChannelType from *first* element of BSSMAP_FIELD_CodecElement */
-private function f_BSSMAP_chtype_from_codec(BSSMAP_FIELD_CodecElement a_elem)
+function f_BSSMAP_chtype_from_codec(BSSMAP_FIELD_CodecElement a_elem)
 return BSSMAP_IE_ChannelType {
 	/* FIXME: actually look at all elements of BSSMAP_IE_SpeechCodecList */
 	var BSSMAP_IE_ChannelType ret := valueof(ts_BSSMAP_IE_ChannelType);