Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Remove useless lines of code in barometer.py

    Change-Id: Ie312dbd296a85a35096294331c28a45f8dc10d0c
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index b1b15c9..a1a5823 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit b1b15c970e0be65b04a94ed9ac2afcbc63a7f901
+Subproject commit a1a5823613824eedac0672b1b64cec06b9068e6b