Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Fix bug in cloudify_ims: no return code

    Change-Id: I89ab2f9b57d9f4710201af5852aa12925f122079
    Signed-off-by: boucherv <valentin.boucher@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0b9923e..c8c8563 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0b9923e3e3a61062455600fbddffdc20df7ce9e6
+Subproject commit c8c85639ad7a265913e2b143955c24f9560b9423