Update git submodules

* Update docs/submodules/onosfw from branch 'master'
  - update scenarios link to index.rst

    Change-Id: Ib2ea7d49c437ca1afb7ca7a0b76c3f96d3ba5960
    Signed-off-by: CNlucius <lukai1@huawei.com>

diff --git a/docs/submodules/onosfw b/docs/submodules/onosfw
index efeefab..9140456 160000 (submodule)
--- a/docs/submodules/onosfw
+++ b/docs/submodules/onosfw
@@ -1 +1 @@
-Subproject commit efeefab342b21329e28c342f31f1ccf3cb3ef8db
+Subproject commit 9140456d7ae8256a9cbb5f0289216d26a102ca21