Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Update results in configguide (rally_jobs)

    Change-Id: Ib00d0341ee56f6009e9346bff6f3fec51590950a
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index aff6640..7236c6b 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit aff6640b5aed37221a05067e93ee164273c16910
+Subproject commit 7236c6b9173550ecb8419eccfd053e7b44b2d379