Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Stop printing in console when testing functest_utils.py"
  - Stop printing in console when testing functest_utils.py

    Change-Id: I6fa0f6f449270199cc4d5b2c88e171091bf92773
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index def004b..f9a3719 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit def004b361002a71222439aea98143db1a99c4fe
+Subproject commit f9a37193d349217614e5953d5eae9cef4a287af1