Update ironic-lib to 2.5.1
Update ironic-lib to 2.5.1

Change-Id: I3feca86805f5fa19e7eac433c969b4ed1075f624
Depends-on: Ifd90464cab285ead2a4a269d7fa64b3d260dcb5b

openstack/rpm-packaging,openstack/rpm-packaging