Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 07409a84337e01aad192560ff02d8ffb2a8c7d95
  - Merge "Remove unused PVC from mariadb-galera chart"
  - Remove unused PVC from mariadb-galera chart

    Used PVC(s) are actually created in the statefulset

    Change-Id: I24f2c3ff0934178c9af06bfee60b4b6e35cfe953
    Issue-ID: OOM-2155
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 475857c..07409a8 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 475857ccfe9bd9fe06bb3c61bbb58190f1222945
+Subproject commit 07409a84337e01aad192560ff02d8ffb2a8c7d95