Updated openstack/openstack
Project: openstack-infra/devstack-gate  24a6cce10d7fe7bf57c8bf331c29c3b1cf10c20f
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Support Ironic in devstack gate

Now Devstack can deploy Ironic baremetal provisioning
service, so it's possible to test it using gate tests.

This patch enables Ironic in devstack gates if the
DEVSTACK_GATE_IRONIC variable is set to 1.

Change-Id: I56ea3a3e2576f5488a43ca4ece35a5a250cef04c