Update git submodules

* Update docs/submodules/pharos from branch 'master'
  - Merge "Adds configuration files"
  - Adds configuration files

    JIRA: N/A

    Adds yaml files in conf/ to fit the laas software into your lab
    infrastructure.
    Each installer (Fuel, joid, etc) will also have their own config file,
    which will point also to their own network and domain config file.

    Change-Id: I0bcd57399b9f3f12aa351604fd03ae92de1ba93b
    Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

diff --git a/docs/submodules/pharos b/docs/submodules/pharos
index 61b3c90..a8d4b6b 160000 (submodule)
--- a/docs/submodules/pharos
+++ b/docs/submodules/pharos
@@ -1 +1 @@
-Subproject commit 61b3c90f44c1c881a0dcd8cff54ff35c9682bdfa
+Subproject commit a8d4b6ba38b5659d44ac3dc4ee3b8fbb231e3827