Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Align reclass cluster model of dpdk scenario

    Change-Id: I4fc0c0e040c97e91c79aae2f0142fb6f025081f2
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 911afea..b9e85b2 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 911afead7d1f3ff1cf1b3c44f282e80140d45785
+Subproject commit b9e85b20595a7b4d0580657e75a1a92ee615a106