Updated openstack/openstack
Project: openstack-dev/devstack  c880fb41b05d94d7c9b5d3acca5ded9a13f14c66
null
Fix marconi's storage setting for MongoDB

The storage driver should be set to mongodb and the driver's uri to the
mongodb:// uri.

Change-Id: I6193a5d78f6cd7283b4e3b1831978883b9e99b06