Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Merge "Add Kubernetes test details to functest userguide" into stable/fraser
  - Add Kubernetes test details to functest userguide

    Change-Id: I032bfe5f079c185d6217800b4a4d16e94c29b05c
    Signed-off-by: Konrad Djimeli <konraddjimeli@gmail.com>
    (cherry picked from commit cf04ef760710de425afef62d2584d7fb5a908d33)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d57744f..56fa2a6 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d57744fb464b3de445d96b1d30a91dc8c15735b8
+Subproject commit 56fa2a6c71d7f231193b31c9700ad2365496b65e