Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 0ab6eb0f08bda3008f70370058d45192687fe5ab
  - Continue testing if functest-smoke-cntt fails

    Change-Id: I493a079e673aef95b684807da02dcd4a01c396aa
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index fd4babf..0ab6eb0 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit fd4babf48686fd28e7d20698a8a5edeee75d6d2b
+Subproject commit 0ab6eb0f08bda3008f70370058d45192687fe5ab