Update git submodules

* Update docs/submodules/releng from branch 'master'
  to 09c62c87c55ba0fa06e563edb707c0da31aacef4
  - Create Functest branch

    Change-Id: I270b78fbc49289cb6a6affe3345e042d0ada0728
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 4c43ffa..09c62c8 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 4c43ffac136731d01cd570a559d42243bf64e415
+Subproject commit 09c62c87c55ba0fa06e563edb707c0da31aacef4