Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 7b55ca56bf6ac492bcbf054a58cb5b7243465582
  - Merge "add nssmf adpter endpoint and so infra endpoint, update the oof endpoint"
  - add nssmf adpter endpoint and so infra endpoint, update the oof endpoint

    Issue-ID: SO-2921

    Signed-off-by: hetengjiao <hetengjiao@chinamobile.com>
    Change-Id: I28524030291cac3b5e4b04221ee23b8354872d73

diff --git a/docs/submodules/oom.git b/docs/submodules/oom.git
index 6c68422..7b55ca5 160000 (submodule)
--- a/docs/submodules/oom.git
+++ b/docs/submodules/oom.git
@@ -1 +1 @@
-Subproject commit 6c68422d16b2e3356d706e991c2666ea7bf81016
+Subproject commit 7b55ca56bf6ac492bcbf054a58cb5b7243465582