Changes

bsc: Fix sporadic failure in .TC_ho_in_fail_ipa_crcx_timeout

The code path was not waiting to receive DLCX if parameter
ignore_mgw_mdcx was set to false. It should wait for DLCX in any case.

Since it didn't wait, te ConnHdlr would finish earlier than expected and
MGCP_Emulation would fail when forwarding the DLCX to ConnHdlr:
"""
MGCP_Emulation.ttcn:257 Dynamic test case error: Sending data on the connection of port MGCP_CLIENT to 2023:MGCP failed. (Broken pipe)
"""

Change-Id: I322b070c369500979e3cc13814de1e4bf067726f