Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Enable baro_tests testcase for F-release

    barometer conforms with OpenStack Pike requirements then it could be
    enabled in functest-features and functest-restapi (master) [1].

    [1] https://gerrit.opnfv.org/gerrit/#/c/47281/

    Change-Id: Iee17bd17192db53075dd8ff8d020d18306394cfa
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5fb15e9..d47e64b 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5fb15e9d7bd868535a5670bbdf0fc1ef29ff3be6
+Subproject commit d47e64bba6466affc3ff0999ae489ec7393ef630