Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[virtual] Add haproxy entries for opendaylight"
  - [virtual] Add haproxy entries for opendaylight

    Change-Id: Id0303d217dbe71e4b04834e545feae0660172b23
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 68209af..06d34f4 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 68209af58a0b1bcd110b2c12fcfc9687ed970da4
+Subproject commit 06d34f4086f0dcc515b6db0eab3fdeb2d15de640