Update git submodules

* Update docs/submodules/functest from branch 'stable/danube'
  - Merge "Increase timeout of Open Baton installation" into stable/danube
  - Increase timeout of Open Baton installation

    Change-Id: Ifdc24a3fc9e2c315b41f9e68bccb88df36252b0c
    JIRA: ORCHESTRA-14
    Signed-off-by: Michael Pauls <michael.pauls@fokus.fraunhofer.de>
    Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5baeb04..f31cf86 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5baeb04d8b789c3e6de613b41b8a3d85484f2abf
+Subproject commit f31cf86c8580468ea1b2252be95d41d12b7100db