Add multitenancy hybrid tests for snat

Change-Id: I5702fbe81740d7950e7ed8a0aca9943a586ea5e1
Related-Prod: https://mirantis.jira.com/browse/PRODX-51693
(cherry picked from commit c3ad95bc25d0f793dc2a2cbf386d6f35f53e8a9b)
2 files changed