Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Bugfix: fix two typos"
  - Bugfix: fix two typos

    1. In run_tests.py, test case name is shown before running:
       logger.error(kwargs['test']) -> logger.info(kwargs['test'])
    2. In tempest.py, Verication -> Verification

    Change-Id: I117838cdb4b0f920c4cf855645d910e623e06868
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 6f3170e..87570cf 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 6f3170e8e1307ad5e153de9c4d10e3e0b8b7e2ab
+Subproject commit 87570cfe1261917a41a3aef287ecd30b928e841f