Andrii Ostapenko 3820b63725 Add Stein barbican overrides
Add ubuntu bionic barbican images for Stein.
Also policy rules changes due to https://review.opendev.org/#/c/609606

Change-Id: I36957c859bf065541ac4ce07e03c01fc020ff4af
2019-11-20 21:13:07 -06:00
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2019-11-20 21:13:07 -06:00