Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 696aacaa5489b3fa5ba54795b012d104b59638f5
  - Add Functest CNTT benchmarking testcases in OVN

    It doesn't run shaker and vtmp which are equal in IaaS verification and
    CNTT conformance. CNTT benchmarking testcase costs time for quite
    nothing but it verifies both processes (IaaS verification and
    CNTT conformance).

    Change-Id: Ibab8b037e8e6ef6ecf52c67dd1159792b880f865
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 253c41e..696aaca 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 253c41ebee08fe26dc19ff1adc1cf1f5e3db916a
+Subproject commit 696aacaa5489b3fa5ba54795b012d104b59638f5