Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Stop personalizing the common Dockerfile"
  - Stop personalizing the common Dockerfile

    Any personal config can be applied to another Dockerfile which
    inherits from this one.

    Change-Id: Ifb77c0d5821c2b40f2f3e1d6adee6f83d0cd0b29
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 793985a..16a0d65 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 793985abc54fdfdfb801513afd378b5ef865f86b
+Subproject commit 16a0d65806ca7bdb166e3d8535185a82b45ae7ff