Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - ansible: add roles to launch ves and kafka containers

    Change-Id: Ida03c47bbe94600b034c95bd0d795e62c253303c
    Signed-off-by: Gordon Kelly <gordon.kelly@intel.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index db356eb..4b3a216 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit db356eba1071fe9ca5bc92586eeebe9bd3005f13
+Subproject commit 4b3a216b75d33dbd9c78b09a790d85a2785d451d