Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Merge "Remove securityscanning testcase" into stable/euphrates
  - Remove securityscanning testcase

    As the project is no longer released [1], security_scan is removed
    from testcases config files.

    It stops installing the related python package too.

    [1] https://lists.opnfv.org/pipermail/opnfv-tech-discuss/2017-September/017951.html

    Conflicts:
          upper-constraints.txt

    Change-Id: Ieb9ff4c2975fbf2c85b875a088b0ec18503a3722
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 59999eb2f2bf3b28c50a9b75fc551192450d28e3)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 9446a42..36f269e 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 9446a42b7900695dbefe5d0728f19b98dde5095a
+Subproject commit 36f269e2f154bfca31aba70d7d1c9ef9ab6e5fb0