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
3 files changed