Add ONAP Security Advisories as a submodule

Issue-ID: SECCOM-239
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Change-Id: I60e416923958da4d6189101b7671cafff0504151
diff --git a/docs/release/repolist.rst b/docs/release/repolist.rst
index df0595c..a083e37 100644
--- a/docs/release/repolist.rst
+++ b/docs/release/repolist.rst
@@ -93,3 +93,4 @@
    ccsdk/features <../submodules/ccsdk/features.git/docs/index>
    parent <../submodules/parent.git/docs/index>
    modeling/genericparser <../submodules/modeling/genericparser.git/docs/index>
+   osa <../submodules/osa.git/docs/index>