Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Adding IDs to the list of OpenStack interop tests

    In Fraser, the RefStack / OpenStack interop tests are executed through
    Rally in Functest. Rally requires the fully qualified name of a tempest
    test, including its tier and ID, in order to find and run it. This patch
    add the missing information.

    JIRA: DOVETAIL-662

    Change-Id: I3a38b7b8d0fe79dd6ad0c0023c62c6647611d231
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index a43b9f9..01b4d86 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit a43b9f9fe0416e2213f0994b6b57ffb957360e6a
+Subproject commit 01b4d8620daca4ca7cd15d4cfbd36a21a66b55c9