Apply network templates before preupgrade handler
Apply network templates before preupgrade handler

  Controller's "preupgrade" handler replaces
  deployment_info if "isolated". After that
  Octane applies network template.

  But nailgun will NOT apply any new settings
  if replaced_deployment_info exists for node.

  Closes-bug: 1572240

Change-Id: I06922a59a5f6976acb7c268460fb95fcde86aa54

stackforge/fuel-octane,stackforge/fuel-octane