OM2K: Skip the entire CON MO if there are no connection groups

If the user doesn't specify any CON connection groups in the config
file, then the CON is not used.  The current code runs into an error
condition, as abis_om2k_tx_con_conf_req() never sends the CON CONF REQ
if the groups list is empty, but we still wait in the FSM for the
arrival of a CFG REQ ACCEPT.  The CON FSM eventually times out in T10
and we proceed with the IS, ignoring the error.

With this patch, we simply skip the entire CON MO in case there is no
related configuration.

Change-Id: Ia4d5bd96734686381f04aa3b380b17a161a31174
1 file changed