Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Run all daily testcases if CI_LOOP is unset

    Then CI_LOOP is no longer mandatory and it bypasses the current
    jenkins jobs's issue [1][2][3].

    [1] https://gerrit.opnfv.org/gerrit/#/c/51981/
    [2] https://build.opnfv.org/ci/view/functest/job/functest-apex-baremetal-daily-master/763/console
    [3] https://build.opnfv.org/ci/view/functest/job/functest-apex-baremetal-daily-master/764/console

    Change-Id: I73629079d70e0f43e609d3861490573e10fd216c
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 6fc64d9..a7bb4ff 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 6fc64d9e03d3e34a55c2792fa2e80c1b9a4b93a0
+Subproject commit a7bb4ff6481247a33c1f6c4152dc86820332ce9a