Update git submodules

* Update docs/submodules/functest from branch 'stable/danube'
  - Remove vping_ssh from bgpvpn and gluon scenario

    Cause of the bug:
    https://bugs.opendaylight.org/show_bug.cgi?id=5586
    Floating ip is not working at the moment for us.

    We don't want to remove the vping_ssh test from
    fuel. the scenarios are called different in fuel and
    in apex. odl-bgpvpn in apex. odl_l2-bgpvpn in fuel.

    Change-Id: Iaa2e6cea8a4fdb8635f018427aaf30634fd8d2d5
    Signed-off-by: Nikolas Hermanns <nikolas.hermanns@ericsson.com>
    (cherry picked from commit 5af67bcca589c275b73fe5e4bca9bea5871948aa)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index e7a442e..b5383d1 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit e7a442e4e0e02089bdbee48b8476a7c85ecb7a57
+Subproject commit b5383d11fa9e54b6ff01d9a08e5f5373af289db1