Update git submodules

* Update docs/submodules/functest from branch 'stable/danube'
  - Backup of reporting status for Danube 1.0

    - reporting html pages for apex, compass, fuel and joid
    - text file with history of Danube scenarios
    - text file of validated Danube scenarios (100% in functest)

    Change-Id: If5585acc5bf56406c0c92e8b132157ed742244f1
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>
    (cherry picked from commit 3a625a5f4b176147e288dbee01734a666a25e34f)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 6c80631..aa616ab 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 6c80631d568dfe8b36cc850e7a28389b370b70ee
+Subproject commit aa616ab690c8408de17adaebd30078a33d161b7c