Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Update ODL tag to release/carbon"
  - Update ODL tag to release/carbon

    Change-Id: I82a5bdaeff5de74f11cd210f6437c720d0ee8aee
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 94d1bdd..55edeaa 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 94d1bddfdd97379e50e4c12f26116441e836d0f6
+Subproject commit 55edeaa617a25dffae699b9b5b5b4f61e7856fd6