Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Publish rally logs to ease debugging."
  - Publish rally logs to ease debugging.

    It also redirect stderr to stdout as tempest mainly prints in stderr.

    JIRA: FUNCTEST-999

    Change-Id: I64bfa31b01aa2ce5444b6e0f0ac46f8cde8dbaa3
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index e8cd8e7..e329a35 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit e8cd8e7bd86a1b2d5fa952711ff854ed7b4982c2
+Subproject commit e329a356a6324b9bdc1ef928a0f8d6ce9aa78616