Update git submodules

* Update docs/submodules/fuel from branch 'master'
  - Configure SubjectAltName for the proxy cert

    In order to avoid SubjectAltName warnings,
    bring it into proxy ssl certificate.

    Signed-off-by: Michael Polenchuk <mpolenchuk@mirantis.com>
    Change-Id: I46fe9697469354bc028039cc1f030baae1ccd7fb

diff --git a/docs/submodules/fuel b/docs/submodules/fuel
index f26e949..a0f04d8 160000 (submodule)
--- a/docs/submodules/fuel
+++ b/docs/submodules/fuel
@@ -1 +1 @@
-Subproject commit f26e94914200be045abfd10d63d7120e9e0f6145
+Subproject commit a0f04d89d4114d11e62801190ddace50e2344ca5