Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Stop Fuel logics in odl

    Fuel is setting the right env vars [1].

    [1] https://gerrit.opnfv.org/gerrit/#/c/59929/

    Change-Id: Ieb0ae1887859e0b7d3f77dfb5100a633b6479a37
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index fa36553..5bd8c86 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit fa36553cfb8e6b25f32322d2dca68550f51f713d
+Subproject commit 5bd8c86c423e59c7a24b15b9855f9e04ba8500c5