Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to ac2d724170fabbba7fa2eeaed2d3e5cf0a213dfe
  - Merge "[SO] Use common secret template in so-openstack-adapter"
  - [SO] Use common secret template in so-openstack-adapter

    Use common secret template in so-openstack-adapter component.
    For now passwords are stil hardcoded but this will be removed in
    further commits.

    Issue-ID: OOM-2328
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: Id01fcc655768bfe965b4d731f99ba3921d90ddd5