Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Add script to build all containers"
  - Add script to build all containers

    It also sets opnfv as default repository as they will be pushed by
    releng.

    It adds hooks asked for automated build via Docker which allows
    continuous integration before the update of jjobs.

    Change-Id: I08b55b1ff334afe6c0f58af3100cfa04f76d8ef0
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0e593e9..2f911f3 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0e593e964c648d8794b7945d77ae9dd41c7e59ac
+Subproject commit 2f911f3f0500b3a1a0f5352282e88e2aea925a6d