Update git submodules

Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Merge "Fix that required tests are skipped"
  - Fix that required tests are skipped

    Because the service running flags of Gnocchi and Aodh
    are overwritten in the loop of the compute node, once the flag
    become false, the tests on all subsequent nodes are skipped.
    This change makes to use new flags for each compute node.

    Change-Id: Idc807419151b34b29f0117c9a7708a16a20d70dd
    Signed-off-by: Toshiaki Takahashi <takahashi.tsc@ncos.nec.co.jp>