Don't use deprecated keystone module
Don't use deprecated keystone module

Get rid of the deprecation warning about using an old module.

Change-Id: I022cda1cbe5c47def3257b6215e5b44d03c6f971

rdo-management/tuskar-ui,rdo-management/tuskar-ui,rdo-management/tuskar-ui,rdo-management/tuskar-ui