Updated openstack/openstack
Project: openstack/tempest  e521962b67b181906c580ef9998ed4905eb374ac
null
Sync latest module versions from oslo-incubator

This commit just syncs the latest modules from oslo-incubator, which
includes removing the second copy of LockFixture from the
tempest.openstack.common.lockutils module.

Change-Id: Ib9b07fe733dc2c924ac0eb054fa707dd352a812b