Update manually commit id (oom.git)

The former git commit id refers to an old master commit.
It's worth mentioning that it was synced by hand before dublin branch
creation [1].

[1] https://gerrit.onap.org/r/c/doc/+/89266

Issue-ID: DOC-505

Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
Change-Id: I9b33dac3080f4b1896ae8fc7db15f68e5e213d1d

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index a4e1ea7..1b6568c 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit a4e1ea7542d466680d300fc736a0a9f7e4d88408
+Subproject commit 1b6568c97c70083a0c5ce453ecb36d0565a423c2