Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[Functest] Remove former way to execute run_tests"
  - [Functest] Remove former way to execute run_tests

    It was used in Danube and there are no more Functest jobs
    that are runnign stable/danube branch.

    Change-Id: If297487767e8e8ead39aa4a10f58c6554be197b0
    Signed-off-by: Jose Lausuch <jalausuch@suse.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index d568d6c..c65ca34 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit d568d6c8187e33681addedb871636623ff0707ca
+Subproject commit c65ca34d344798756596c056dc3162757a744e47