Update git submodules

* Update docs/submodules/fuel from branch 'stable/fraser'
  - [salt-formulas] opendaylight: Fix noproxy case

    Change-Id: I192cda7412151b2974e1bcd79a51f7593acace5d
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
    (cherry picked from commit b52c4df4061fd7a51aad94f144bb1326fa8a8b5a)

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index f848787..56cfed1 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit f84878774000718216dfb0575a55a63c03c2b39d
+Subproject commit 56cfed1a8981a16f2671754d8aa29f7c850a0ee0