Update ironic metadata to handle https on API

This patch updates ironic metadata to work with TLS on ironic API
side.

Change-Id: I07ad586639d24d3166f4e0581e23a5dad75e274c
Related-Prod: PROD-24466
(cherry picked from commit ba979c435d77a637880841e2175c5fb93b84da21)
4 files changed