Update git submodules

* Update docs/submodules/pharos from branch 'stable/euphrates'
  - Updated fuel adapter (vlan1000, interfaces format)

    Change-Id: I848f13acca08c4c8a24eeecd3554ea6d50bbb565
    Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>
    (cherry picked from commit 908dab58edbbe8f22db14a9261693a54e9b2d8fd)

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index 3a8defe..d674054 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit 3a8defe6ca168b2a7739ff4fb64543da10f2b3e7
+Subproject commit d67405495e8e8da1ccd02b1f9034e3807adbe9fe