Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Add packages in docker alpine containers

    To run our SFC tests we require openssh and sshpass to be installed in
    the container

    Change-Id: I40b3d740855d48939f9411697abbd3bbbb70370f
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d1a1486..0e491ad 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d1a14868f9747b64d0e3ab8e5a13aa58e087a3d8
+Subproject commit 0e491adc1b1a1fc16db22c160e08b16d19cae45a