Fix ip_allow config generation for mids to include rascal servers (#4296) (#4308)

* Fix ip_allow config generation to include rascal servers

* Fix ip_allow generation in atstccfg

* Add API tests for ip_allow

* Make tests more robust

(cherry picked from commit 6b11bd9cad471c549ff8c22a0ed068e56f91f5b9)
6 files changed