Update git submodules

* Update docs/submodules/functest from branch 'master'
  - List all sheduler filters instead of all

    It doesn't work as expected as highlighted in [1].

    [1] https://review.openstack.org/#/c/570207/

    Change-Id: Iaf64345c40e8d62349cd50a6861c1191d25c40b9
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index d4e60af..ecc7bc2 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit d4e60af2b8f544d774223b16c193dc40bd5dce38
+Subproject commit ecc7bc215cdf47104d61ba7e23e5f8ec65ca03c4