Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Integrate Patrole as a new testcase"
  - Integrate Patrole as a new testcase

    It's published in a new container because the current results don't
    allow gating.

    0.2 is selected to meet OpenStack Pike's requirements.

    Co-Authored-By: Rémi Le Trocquer <remi.letrocquer@orange.com>
    Change-Id: Iafcf8f66ee3531fc43136886095774885bfc3150
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5d6cce7..623b67e 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5d6cce702590f6bcf340a99343edba8c251534e1
+Subproject commit 623b67e74799edb251c9434857be0c0565ef7a41