e7a103c5a4
1) Rename the neutron DB at step 2 so Neutron has time to stop (during step 1) and right after we stop mariadb, so no chance for any app to access to old db. 2) Upgrade all rpms at step 3 like we do for other services. Step 1 was way too early. Change-Id: I34bdc0a9d575e5d1b8f3ce1e09c145cc34563a85