Update git submodules

Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Merge "WIP: Add role to auto install docker on hosts"
  - WIP: Add role to auto install docker on hosts

    Auto install docker with dependencies on hosts:
    apt install python
    apt install python-pip
    pip install docker-py
    apt install docker.io
    Set docker proxy using host proxy settings.
    Updated documentation.

    Change-Id: Ibec7e0a7e484d5a9a8656cd3598c3acc7c2e2184
    Signed-off-by: Kamil Wiatrowski <kamilx.wiatrowski@intel.com>