Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - docker: cleanup directories and files

    Rename docker container directories to contain the barometer_ prefix to
    prevent any naming clashes with other opnfv containers. Cleanup files
    that are no longer needed. The patch cleans up trailing whitespace.

    Change-Id: I332626554502a3e17685a2abd98c0679f30d0c24
    Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index d4479cd..d5979bd 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit d4479cd89385b9370b22f5157c654f0551d0dc26
+Subproject commit d5979bd86ef9ad5fc28d9183439381d3abcf2053