Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Add docstrings in odl"
  - Add docstrings in odl

    It has been rated at 10.00/10 by pylint.

    Change-Id: If45656080a47c2582556f841a02379b37e481fd9
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 822ec01..e0ff12a 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 822ec0154205a0f260c5faed2cf215b6c4bbcec2
+Subproject commit e0ff12a18ff24f7c023fa5d6be0d145f450e0283