Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Force result = 0 if exception

    self.result can be positive due to intermediary steps (scenarios).
    Else it can return false positives [1].

    [1] https://build.opnfv.org/ci/view/functest/job/functest-apex-virtual-suite-master/113/console

    Change-Id: Iecadee7f7380fda5273a0668aff1b441647c45aa
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 06ee830..f83c5fc 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 06ee8307aed7f30ba493c0494cfd82cead465b56
+Subproject commit f83c5fc1f0ecd3b93a39b3cf90ed9cd478cb37a6