Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "enable doctor-notification test case"
  - enable doctor-notification test case

    Change-Id: If2b6b46f3f192f58636c55f3ddc9e80b9e22be3c
    Signed-off-by: Ryota MIBU <r-mibu@cq.jp.nec.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index e50767c..3409bc4 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit e50767cc62bbf42505d36b3932709db8a73e9d4b
+Subproject commit 3409bc4eaf88b78e15b045afbd6b461c3fb281e7