Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Merge "[patch] haproxy hostname parameterization upstream"
  - [patch] haproxy hostname parameterization upstream

    PR [1] was merged upstream.

    [1] https://github.com/Mirantis/reclass-system-salt-model/pull/298

    Change-Id: I335ac265b0b0b625c2f488755c5d11710ab354c2
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 2b62cfb..22fbf08 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 2b62cfb434b720d869f81c9f66e20fa0c8dc2daa
+Subproject commit 22fbf083c762c56efcf6ba40e6e4cc5643da3e4e