Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Return back infra interfaces config

    Change-Id: I4baa9940ae14ef6e084fda7169ec43be7cf3f449
    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 131aef7..14bfaca 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 131aef7c2cfea9e2bbb0be86c5534bd4feebbfbc
+Subproject commit 14bfaca0fd98995feae9e46a71ccdc227c908ce4