Update git submodules

* Update docs/submodules/stor4nfv from branch 'master'
  - Fix a typo

    Change-Id: I6c4b9cc320270216f9064bb402436ff221bed7c6
    Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

diff --git a/docs/submodules/stor4nfv b/docs/submodules/stor4nfv
index 171a30a..80a8551 160000 (submodule)
--- a/docs/submodules/stor4nfv
+++ b/docs/submodules/stor4nfv
@@ -1 +1 @@
-Subproject commit 171a30a0521dd522a1bfdd9d8407a21e73600c46
+Subproject commit 80a855170e1488eeb8cc0833ffba2b1938c327ac