Update git submodules

* Update docs/submodules/functest from branch 'master'
  - 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 a3f027e..55bc0f6 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit a3f027e8fe6d0198c5dbcea9e0292bc0e21f54fd
+Subproject commit 55bc0f6446ed71a37282de6bd08fb1ee42152378