Update git submodules

* Update docs/submodules/fuel from branch 'stable/fraser'
  - Merge "Turn off default apache ports" into stable/fraser
  - Turn off default apache ports

    Change-Id: Ie1b427975e7596f6ba0eba953d60b21a907d65c5
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    (cherry picked from commit 8de9c24300817b9d0ce4f2bfb2ab63643d895a1a)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 8eff52b..53bf694 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 8eff52b0d776a278ca031feb35c0bb2bc0ebfebe
+Subproject commit 53bf694e12219c79853c5dfdc282769138524b2c