Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "refstack: bugfix of name TestCase"
  - refstack: bugfix of name TestCase

    JIRA: FUNCTEST-758

    Change-Id: I1b90597c9745faa67afa58e5653f72411a95aa3d
    Signed-off-by: MatthewLi <matthew.lijun@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 443757a..822ec01 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 443757aa99ccfcb743b132e14f36d61aef2de282
+Subproject commit 822ec0154205a0f260c5faed2cf215b6c4bbcec2