Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Force region to RegionOne if OS_REGION_NAME is unset

    tempest still selects the first one if unset [1].

    JIRA: FUNCTEST-990

    [1] https://docs.openstack.org/tempest/latest/sampleconf.html

    Change-Id: I238d47173c2c4aa1db694028e4d44b80b0e280f1
    Signed-off-by: Cédric Ollivier <ollivier.cedric@gmail.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 036cb7d..8b2f524 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 036cb7d9075f7eee45e7533d8c37a5b89e6c6dd5
+Subproject commit 8b2f524f0f17f06bf1de02e0165230bad218132b