Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Add case_name as constructor arg"
  - Add case_name as constructor arg

    It allows managing multiple TestCase names with only one TestCase
    module. It is mainly required by odl which implements:
      - odl,
      - odl_netvirt,
      - fds.

    It also renames case to case_name in Features to conform with
    TestCases.

    JIRA: FUNCTEST-762

    Change-Id: Ie254f754a0ea3077a8afda1c470528d38c79478f
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 7af7f85..d06d840 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 7af7f85cc1d8cc0ef05ec839a70504f89d38f806
+Subproject commit d06d840c00d4e3b58b826447e17035469e967357