Update git submodules

* Update docs/submodules/barometer from branch 'master'
  - Merge "Simplify RE validation"
  - Simplify RE validation

    Change-Id: Icbafb709556cb644c42a35303f5cc76500f404ee
    Signed-off-by: Peter Barabas <peter.barabas@ericsson.com>

diff --git a/docs/submodules/barometer b/docs/submodules/barometer
index 2028902..b31e3a5 160000 (submodule)
--- a/docs/submodules/barometer
+++ b/docs/submodules/barometer
@@ -1 +1 @@
-Subproject commit 20289029422f9b6d3a8ca06ca4df89918d9d1ba6
+Subproject commit b31e3a5d11c2f052915b6828a772c73ca9c724e6