Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Add unit tests for feature

    They partially cover feature but already highlight bugs.
    Several tests are skipped to allow merging. Their decorators could be
    removed as soon as feature is fixed.

    I think bad-continuation is false positive so it's disabled (pep8 and
    flake8 return ok).

    JIRA: FUNCTEST-779

    Change-Id: I89b9e2ec0388eea2471d941b2c653deca7fbddf6
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 582ebd4..db9767d 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 582ebd448508625ed2c9f362aaafc3fc46e60df0
+Subproject commit db9767d6871b3601265b46645d2ff7656f3a0bb4