Update git submodules

Update git submodules

* Update upstream/fuel from branch 'stable/colorado'
  - deploy: Fix: remove storage files explicitly

    Previous change [1] tried to move the responsibility of removing
    storage files (raw, iso) from our python scripts to libvirt.

    Although this works as expected for non-root invocations, like
    Armband deploys, it fails to remove raw files in Fuel@OPNFV deploys.

    Work around this by keeping both mechanisms (libvirt managed +
    python explicit handling).

    Related-bug: ARMBAND-128

    [1] https://gerrit.opnfv.org/gerrit/#/c/22447

    Change-Id: Ib846cd6071705b71d98824385835d724c729fd78
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit aa912dc6691fba23c0827108f6a20296942e1ac0)