Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - [baremetal] SaltStack Deployment Documentation

    Generate documentation automatically using `reclass-doc`.
    nginx is already configured to serve said documentation on
    proxy's public VIP on port 8090.

    Change-Id: If2aef646a0ec44d5cc7e9d425e565e5c0aa581b3
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index 167e704..f3a355d 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit 167e704d40bb40b1edf2e014444f0201a28178fa
+Subproject commit f3a355d5644a7271d9df0a48febc3a93cceddb8e