Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Merge "Fix timeout for socket connection" into stable/euphrates
  - Fix timeout for socket connection

    Change-Id: I0688761ba7224f40f79310295efadd9b40bfeefb
    Signed-off-by: Linda Wang <wangwulin@huawei.com>
    (cherry picked from commit 112e652af2b2f61192d3f1bd903522a14be06b94)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 625f8ba..f16ba39 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 625f8ba769a6f9c897fa4f2dd94054edc7073540
+Subproject commit f16ba39de51b9e6893002a8ea7be1891c35083a3