Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Turn on opendaylight scenario

    * fix formula & reclass cluster model
    * bring in running states

    Change-Id: I8e66e69045f5c745f9aa6f59f7ce6d66b5bf1c95
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index e49e91d..de6a685 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit e49e91d7aa740437c01e6531ef648d2dae97c11d
+Subproject commit de6a685915bc8bd5444217bca511da35c94b4d59