Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Connect proxy nodes to public network

    cloudify vnf requires public enpoints to be available from instance
    with manager, so connect nodes w/ nginx to routed public network.

    JIRA: FUEL-286
    Change-Id: Id0caa699519b9b46dad51deac6955afe6a0050de
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 6436cba..0861ea0 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 6436cbad3cdf190d891c0121c7e6a7fd814a1026
+Subproject commit 0861ea0799114d9c59499f2c52a9c7a79fb1bbb7