Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Unlink feature from constants"
  - Unlink feature from constants

    Saving results dir as class attribute seems better in the context of
    xtesting.

    Change-Id: If40303d07d3be9bdc09d990f560cbeda429fd642
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 81775c2..23d9483 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 81775c2aae62f1f96a54c27eed59cea9f9722de9
+Subproject commit 23d94834ee5aca5d184bfa152e5275d7a50a3f8a