Update git submodules

Update git submodules

* Update upstream/fuel from branch 'stable/colorado'
  - Shift public ping checker into deployment stage

    Avoid public vip failover at the end of post-deployment
    by moving ping_checker resource into deployment stage.
    Also pingd constraint has been changed to be based on score.
    If all the nodes failed to ping the default gw, the resource
    ain't stopped and remains on the last node where it was.
    In addition public_vip_ping task has been splitted out
    to avoid race condition when ping_checker resource might
    be started up on controllers before a primary one.

    JIRA: FUEL-212
    JIRA: FUEL-217
    Change-Id: Id60ece479fce1ceabc47034f39997ddbaacd62d9
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>