Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to b61a71b57b1822ca4a1611e7ff977bb8a0ef3c53
  - Merge "[DMAAP] Don't hardcode mariadb-galera password"
  - [DMAAP] Don't hardcode mariadb-galera password

    Let's use common secret template to generate user credentials for
    DMAAP data router DB DB and depend on mariadb-galera to generate
    secure enough root password.

    Issue-ID: OOM-2287
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I82d22a2db2dc9fba655f99f837be689f4a32a871