Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Fix the format of getting upper-constraints"
  - Fix the format of getting upper-constraints

    Change-Id: I8a769ec161b1a718ef259ae6b6615aec01e337ec
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index fb3ffed..5d60559 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit fb3ffed7e8128416094e80ecf126c9ca51933c69
+Subproject commit 5d60559a1d22a027b1f9b0e5f2494415dca19784