Update git submodules

* Update docs/submodules/onosfw from branch 'master'
  - Local Documentation Builds

        This adds configuration for performing local documentation builds
        with the following simple command:

        tox -e docs

    added index.rst so that docs build succsesfully

    Change-Id: Ifa6f16eccfcadd7f9d86e8d3def5a81b79ecf478
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>

diff --git a/docs/submodules/onosfw b/docs/submodules/onosfw
index 2f46a8d..1a669bf 160000 (submodule)
--- a/docs/submodules/onosfw
+++ b/docs/submodules/onosfw
@@ -1 +1 @@
-Subproject commit 2f46a8d07f77d202ec41ce6379b8524569a27455
+Subproject commit 1a669bfecc76837bf064c74cd382a97ef48310e1