Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Fix parametrized nic name variables

    -Fix interface order for reclass config node
    -Interface types regruped on 3 sets for each cpu arch
      -Foundation VM interface names
      -VCP VM interface names
      -Baremetal node interface names

    Change-Id: I1ae522d775ee538b35b0f043914c80c3993232fc
    Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index d24e773..c8d0c5b 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit d24e773f1cc9dc8aece460eef34f14d90a55349a
+Subproject commit c8d0c5b687f5eec9db62171fdf53053f5ffeef28