Update git submodules

Update git submodules

* Update docs/submodules/oom/offline-installer.git from branch 'master'
  to f2f06700b7b9ad99c9c182fc01ee5cc0782ead78
  - Merge "Fix missing import in helm_deployment_status.py"
  - Fix missing import in helm_deployment_status.py

    After recent changes a regression emerged due to
    not properly imported 'subprocess' module 'check_output'
    function.

    Predefined list of available healthcheck modes is also
    removed to allow passing any mode that will be supported
    in future by healthcheck script.

    Change-Id: I2dc681da079f75449f9f2456249d51b3c859f434
    Issue-ID: OOM-1806
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>