Update git submodules

* Update docs/submodules/stor4nfv from branch 'master'
  - Initial test code for functest

    Change-Id: I918150ab35d5506918baaf39d9e5ec9ec622092f
    Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

diff --git a/docs/submodules/stor4nfv b/docs/submodules/stor4nfv
index 6bc7e08..b76f050 160000 (submodule)
--- a/docs/submodules/stor4nfv
+++ b/docs/submodules/stor4nfv
@@ -1 +1 @@
-Subproject commit 6bc7e08cc5d80941c80e8d36d3a2b1373f147a05
+Subproject commit b76f050cab6e736f19d0f9b74b3239c180dac0c3