Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to fb5ea184f59174cf6ce8c66cfb5b0453c9e0771f
  - Add _release_notes reference in Release Note RST file

    There is no reference _release_notes in the rst file
    As a result, this file can not be linked from the global Release Note page

    Issue-ID: DOC-631

    Signed-off-by: Eric Debeau <eric.debeau@orange.com>
    Change-Id: Ia90bdfde8fd6d804f4d59fe3f37099abc2fa3791

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 523bb0f..fb5ea18 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 523bb0f096646ff70b8f9e94ac63828fe2fc3052
+Subproject commit fb5ea184f59174cf6ce8c66cfb5b0453c9e0771f