Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Avoid exiting when snapshot initialization failed"
  - Avoid exiting when snapshot initialization failed

    Change-Id: Ia8162d6c64847090d94f97fdab92cad2b5f059f1
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index c5152e5..71e2877 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit c5152e5ca372ba661f6669c67b51bbe0bb9d9e26
+Subproject commit 71e287712d1f59e442603af244ff3230a6333e44