Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Define console_scripts

    Only prepare_env.py and run_tests.py remain executable to avoid
    breaking the gate.

    As soon as the jenkins jobs are updated to run them from $PATH, tox
    will be updated to protect against chmod a+x py files. Dockerfile
    will be simplified as well.

    Change-Id: Iac1a7ceb6b344e800177226ea39919826f6d3735
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index c426ee4..6786096 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit c426ee40d40434ea3a5d085f7b98d28fcdb063ff
+Subproject commit 678609610f4ccbcb19438cbce5d84bd376010596