Correct informing about glance problem

Instead of always inform about glance image
problem in every fail deployment now we report
following such rules:

- report about last node only if controller do not present in task.
  This change prevent to unexpecting error report about compute node
  generally.
- report about controller only if controller do not mark as error
  before. This change prevent error about expecting glance problem
  because deployment on contoller already failed.

Change-Id: I5079bcc11b70d889e432fab57ece81ff956b7115
Closes-Bug: #1389651
Closes-Bug: #1389640