Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Removal of deprecated SNAPS-OO classes in juju_epc"
  - Removal of deprecated SNAPS-OO classes in juju_epc

    It completes the first commit about that topic [1].

    [1] https://gerrit.opnfv.org/gerrit/#/c/47617/

    Change-Id: I1a55b45f0535ae98681546d4d24bb424cf892aa8
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index bad712f..a04bc0f 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit bad712f34309cf4cf09701e900b832b2503761f6
+Subproject commit a04bc0fa0a07f825856322bf2ebd359a232057bd