Update git submodules

* Update docs/submodules/barometer from branch 'stable/euphrates'
  - Adding improvements to SNMP testcases

    This patch contains improvements to testcases for Hugepages,
    Intel_RDT and mcelog verification using SNMP

    Change-Id: I3451e0acd9c791e6145bb15e7ba8f3525bc0f0e8
    Signed-off-by: Sharada Shiddibhavi <sharada.shiddibhavi@intel.com>
    (cherry picked from commit b104e2981f0b0ec19f109e220cddc76d97d0ed1a)

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index e580116..4a17308 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit e58011611ccaa6ddce6f84cb0dc2b613b8545ffb
+Subproject commit 4a173083f549e8a30292b9af9b33b7d7a4efece0