Update git submodules

* Update docs/submodules/barometer from branch 'stable/fraser'
  - docs: Updating Compass4nfv installer support in Fraser

    Updates the following doc with barometer-collectd container support
    as well as Grafana and InfluxDB support in Compass4nfv installer:

      docs/release/configguide/postinstall.rst

    Change-Id: Id2c7e1167b0fd99f9200510de7caaa7b25052a5f
    Signed-off-by: Ramamani Yeleswarapu <ramamani.yeleswarapu@intel.com>
    (cherry picked from commit 8b4afb2cd35bf1a32cea635b07c2fce18397413e)

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index 83119c8..70a568e 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit 83119c84b73421144b1e25b7946dc5eeeb19c298
+Subproject commit 70a568ed8eed6f1a336f1fbe9bbc6900422e0c11