Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Launch Functest RestApi once the container is run"
  - Launch Functest RestApi once the container is run

    And fix the handling about env prepare exception.

    Change-Id: I3e590e63157182c442602367a244d7ff647f8b7d
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 96357c5..ffa9b99 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 96357c54369a04f2b5d117573cf3fd3478d63623
+Subproject commit ffa9b999bb57208bd744b65d62570313f1b2b9d1