Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Stop raising keystoneauth1 exceptions in odl unit tests"
  - Stop raising keystoneauth1 exceptions in odl unit tests

    It simply raises Exceptions to avoid depending on keystoneauth1.
    Snaps may also reraise another exception.

    Change-Id: Ib3041b2d8ff51ee098f2bf0b9918079b7945abf3
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0f32796..0018213 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0f32796cae2aec6f778758f377ca76ffac1c8215
+Subproject commit 00182139afbfa67541340d46e49d948d1f69840c