Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Removing collectd restart process before Gnocchi test

    In this patch we remove the step of restarting collectd before
    Gnocchi test and adding it only before CSV testing. This also
    has fix to functest result status at the end of test execution.

    Change-Id: I2113ce8c5234535ab6f8d8c524038ead39e6df38
    Signed-off-by: Sharada Shiddibhavi <sharada.shiddibhavi@intel.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index 3078905..47b7701 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit 3078905c7a7ea7a1c6c3ef868af0afafd37e8dac
+Subproject commit 47b77018cde65b57a65faa1398e96918430415fb