The testsuite did not support VTY access in the past, so VTY access was
unconfigured. Lets add the required lines to the configuration files
Depends: osmo-mgw If383f81af3306f8f5bdf50152498ae1303d390df
Change-Id: Ife949c61156222de3026280071226ef6f5dbd959
Related: OS#3807