Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Support different user/project domain values"
  - Support different user/project domain values

    For the moment, VNF works well only if

        OS_PROJECT_DOMAIN_NAME=Default
        OS_USER_DOMAIN_NAME=Default

    It's now possible to use domain != Default

    JIRA: FUNCTEST-935

    Change-Id: I779a93538662ff32906d91d7cf3b2c5c3e872765
    Signed-off-by: Valentin Boucher <valentin.boucher@kontron.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ff4817e..5d6cce7 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ff4817eb5e7e11780353c73a9c7d0f40948863be
+Subproject commit 5d6cce702590f6bcf340a99343edba8c251534e1