Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - [fuel] IA: Reserve IP addresses for 3 ODL nodes

    Change-Id: Ifcfd806d568c3cda375166b9c63381f66ee375c4
    Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index ca6c6e7..754f994 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit ca6c6e7ef7c5fe463a8df66dcf741728b35dad62
+Subproject commit 754f994c0337402e7983a0cb12a6ed692a1a1cca