Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to a8672794ffc7c4b9486df575e665301fd9db3d97
  - Merge "Bump version of readiness image"
  - Bump version of readiness image

    New readiness image proposes several new stuff:

    * smaller size
    * ability to wait for daemonset

    Issue-ID: OOM-2373
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
    Change-Id: I4af9a09393c5b71214d8f4db2c1a095b260c9fbd

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 068d592..a867279 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 068d592f5460020a5485e0c697c0afede4e167d7
+Subproject commit a8672794ffc7c4b9486df575e665301fd9db3d97