Fix error on listener OPERATING_STATUS check

This patch fixes the check for listeners that
have been created with admin_state_up = False,
when running a driver in non-noop mode.

By error it is checking that the listener
is in ONLINE status, when this particular case
requires checking OFFLINE.

Change-Id: I07a9f6abdef29334d70e30755bb948c5b0b65d54
1 file changed