Update git submodules

* Update docs/submodules/functest from branch 'stable/danube'
  - Merge "Adding label for userguide" into stable/danube
  - Adding label for userguide

    Change-Id: Iaab305c913173594ee2d857255b6492d15f15916
    Signed-off-by: ShubhamRathi <shubhamiiitbackup@gmail.com>
    (cherry picked from commit 9e1dba02a3e545fb6c3d28fa6478b01ece36647c)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5e0babe..6c80631 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5e0babe9c87fb70fb0a123790390afb4ed7e986b
+Subproject commit 6c80631d568dfe8b36cc850e7a28389b370b70ee