Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Dynamic region name of juju cloud"
  - Dynamic region name of juju cloud

    Region name in juju cloud has been made dynamic now, region name
    will be added in cloud file from os environment variable.
    It fixes the issues when runnit juju_epc vs Apex [1].

    It also updates ubuntu images to xenial.

    [1] https://build.opnfv.org/ci/job/functest-apex-baremetal-daily-master/628/console

    Change-Id: I9422af3086141cd40b99e6482883a7081f58c2ea
    Signed-off-by: soumaya <soumaya.nayek@rebaca.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 98a9424..c411e0a 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 98a942469134fcc3f91b6658a6fbb256d9d89518
+Subproject commit c411e0a16b804792c1b34cc819618e1bfbca3d9a