Updated openstack/openstack
Project: openstack-infra/devstack-gate  bf023e31aa8ded2287e7432b02713638a4c9d037

add support for setting devstack LIBS_FROM_GIT

This allows us to specify that a particular set of libraries should be
passed to devstack to be part of LIBS_FROM_GIT.

Change-Id: Id59dcede6d8ec7b697ec33b61b43e3b0d8d84286