Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Merge conflict

    Revert "Merge "ansible: add ansible scripts to configure .conf file on collectd nodes""

    This reverts commit 7effd9e1e84dd7fa2a189a0815b5be1c0fcb165a, reversing
    changes made to b26034d05aa81f624e9bcee2c8e82a1cacfe44c4.

    Change-Id: I6f77b4432bbe0de29db3e099263e461e3043b22e
    Signed-off-by: TsaLaGi <aasmith@redhat.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index 7effd9e..7f4ef61 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit 7effd9e1e84dd7fa2a189a0815b5be1c0fcb165a
+Subproject commit 7f4ef61d68c3ed96759f3553b2793e0ce6a7e4a5