Update git submodules

* Update docs/submodules/functest from branch 'stable/danube'
  - Fix the irc channel

    Change-Id: Idb446213274b7dfb03b0ee072717a35e03428609
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 09fb3ab..48882b2 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 09fb3ab86c7a9efe6e1217b945d71c4c1116e7e5
+Subproject commit 48882b296c71296330b0ddd764a945e6ba1a83cb