Update git submodules

* Update docs/submodules/parser from branch 'master'
  - Added a license metadata line to specify Apache-2.0

    Change-Id: I567522d47fa30efa03e84e5292360481e81f30ad
    Signed-off-by: rpaik <rpaik@linuxfoundation.org>

diff --git a/docs/submodules/parser b/docs/submodules/parser
index 988adca..3e47bbc 160000 (submodule)
--- a/docs/submodules/parser
+++ b/docs/submodules/parser
@@ -1 +1 @@
-Subproject commit 988adca961c04b10cc39d8f25707e731da91cb5d
+Subproject commit 3e47bbc8286ef7f065e149319da3e3a5619193e8