The functions new_transp_info_rtp and new_transp_info_gtp are needed to
generate the transport layer information struct. The functions are currently
not public since they are only used in ranap_msg_factory.c but to
reqwrite the RANAP RAB AssignmentReqtest / AssignmentResponse messages we
can reuse this code, so lets make them public.
Change-Id: I1e369718de8c4c7db1f1af1e6864562164ada6cf
Related: OS#5152
Fix the ranap_parse_lai() part that decodes the MNC: place the *10 at the
proper MNC digit.
Add a comprehensive test for ranap_parse_lai() in test-helpers.c. Because
ranap_parse_lai() logs things, add test_common.c to test-helpers compilation
and an expected stderr output to test-helpers' testsuite.at def.