Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 570fa97c500e9d32cf6d2a40834782db8f1db1fe
  - Merge "[DCAEGEN2] Use common secret template for postgres credentials"
  - [DCAEGEN2] Use common secret template for postgres credentials

    Even through we use common secret template both passwords are still
    hardcoded in common postgres chart but this will be removed as a final
    step just like we did for mariadb-galera.

    Issue-ID: OOM-2250
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I4b499e277bb084d7d1f2f2d9b72533a6532b751f