Updated openstack/openstack
Project: openstack/nova  6f2b36815eaa67fe31015c575640b47145666e4d

Libvirt: Do not raise ENOENT exception

If the disk disappears during update_status(), only need to print
a warning, and do not need to raise an exception.

Change-Id: I87800c855c7b349f69163e33031404ad25e2a9ca
Closes-Bug: 1358609