Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Get back to salt 2016.11

    Change-Id: Id024ed22dd1760f41ae18aeb8e680c2f07a5dc63
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index fd1f3fa..06c464a 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit fd1f3fa1c8c83b2e5f8cacc6a6caf1a14e40b1a5
+Subproject commit 06c464a9c2aee9cbfa801b2f3842bd0beca62291