Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Move odl into healthcheck

    It should be included in healthcheck as all basic tests.

    Change-Id: I48439fe6385a9056eed8b779290f20633d59b0fd
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0503756..6d2a016 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0503756fa4584e82081fb44b9133d2564d77105b
+Subproject commit 6d2a01691e400f86f3bc55a279d93b8758195ed3