Adds CE to EE compatibility with 2756
CE Backport was having trouble https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13892#note_38846522
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
CE Backport was having trouble https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13892#note_38846522