Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Add license in feature.py

    Change-Id: I75f51f216dcbf0db1c563cf381c28efc47241d3c
    Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d467ead..e2bef24 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d467ead2a0d8585cd7b702804029ed514f26b513
+Subproject commit e2bef24394cbfa22c67328d13024e08a4ac6a266