Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "[fuel] extend public gateway support"
  - [fuel] extend public gateway support

    JIRA: FUEL-305

    Change-Id: Ic5a2d499925aeec5b597394a059640ddae83fb2d
    Signed-off-by: Guillermo Herrero <guillermo.herrero@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index a24e1a7..cf19f9e 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit a24e1a788afd96f8ce4ee2f3b4d888d7e39dfce1
+Subproject commit cf19f9ee69eacc1189cbeb746b30e3a09eaeac93