Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Add rally_full in all gates

    rally full is fully verified in Functest gates (all OS versions).
    It's so relevant to add this key testcase.

    Functest gates end in 4 hours (all testcases included).

    Change-Id: I595b02bc4e06a893853b5c49b610e1fd28d8cec7
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 40b3239..2ba337e 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 40b3239551efa65067e57183e43a62e9b2432124
+Subproject commit 2ba337ee3af276a84f44e2041c562fa2dc071f4a