Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Try to get Member or member role

    Keystone roles are case insensitive and Apex declares member which
    couldn't be detected. Then conflict occured when creating the
    mandatory role [1].

    It now searches the default role in lower case too.

    [1] https://build.opnfv.org/ci/view/functest/job/functest-apex-baremetal-daily-master/141/console

    Change-Id: I687ecfe768ab4717fdb42a135c4bf9b76733ffd9
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 4f89564b20e9c3462614706a616d469540631786)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 3eb3153..1e7083b 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 3eb3153d9c28b9bf8b0afddb4b918af7e34bcdbe
+Subproject commit 1e7083b512c3d821dba009acb3fec84ea63fb8a6