Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to f37261b53a7d07d6046c6710b5828e70ead678d0
  - Merge "[APPC] Don't hardcode mariadb root password"
  - [APPC] Don't hardcode mariadb root password

    You should never ever assume that secretpassword is a production
    ready password for your mariadb-galera instance. Instead let's
    just share a secret with our instance of mariadb-galera.

    Issue-ID: OOM-2275
    Change-Id: I25486ad81a2ec428dbbd379ab3529c84f55acc4b
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>