Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Merge "Disable lvm plugin build"
  - Disable lvm plugin build

    JIRA: BAROMETER-103

    The lvm plugin will not build due to a deprecated library.  This
    patch will disable the building of the plugin until upstream collectd
    can correct the issue.  Collectd issue #2820

    https://github.com/collectd/collectd/issues/2820

    Change-Id: Idcc8e274cef87e1ad0c62cbe9097a24b298adc5f
    Signed-off-by: TsaLaGi <aasmith@redhat.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index 4fa0049..3e3432a 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit 4fa004981ab3073bcec477d36900924990bcfccd
+Subproject commit 3e3432aeec95033853aea02db723d641b558b228