Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 388698c56ea6ddc4156c20ce8bfe89c6c2f8cad6
  - Merge "[VID] Use mariadb galera common chart"
  - [VID] Use mariadb galera common chart

    Instead of using "own" galera chart, reuse chart placed in common part
    of OOM installation.
    Will ease move to common galera cluster (which is not done by this
    commit).

    Change-Id: I843c89ed4899055e9502268089d0e01f28fe37ae
    Issue-ID: VID-704
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index d0abd4d..388698c 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit d0abd4d917abd225e9e3e73faf85e2fe3e8f28a4
+Subproject commit 388698c56ea6ddc4156c20ce8bfe89c6c2f8cad6