This patch fixes permissions on the /var/lib/ironic directory when
it gets used by ironic-inspector. It was previously getting owned as
root:root which causes functional issues with the ironic-conductor
service on the same node which expects it to be ironic:ironic.
Change-Id: I408f791af1d6dca059836efc197d814ec63f942d
Closes-bug: #1746553