Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [noha] Update OpenStack version to Queens

    * make cluster names version-agnostic
    * pre-install oslo-templates formula
    * salt version update to 2017.7
    * system reclass update

    Change-Id: I903895f6bcd98a1062e66e3f14d23ec04dc1b869
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 78d3687..afae8d4 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 78d368731c9582361cc291d5618e01702982f2b9
+Subproject commit afae8d4d99d962448eb62cdd306f7a3dcda83744