Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 7247de21ba24468145defa6e03b799e12d24eec7
  - Merge "[OOF] fix secret names for mariadb-galera"
  - [OOF] fix secret names for mariadb-galera

    It looks like AAF issues masked my real mistakes of letting
    some of oof services failing because of bad secret names.

    Let's fix that quickly by just setting them to the corrent names
    temporarly as later oof will be ported to use common secret template
    anyway.

    Issue-ID: OOM-2053
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I9de1804dbd5399df25a3ef98354f41d39d073bf7