Update git submodules

* Update docs/submodules/dovetail from branch 'stable/fraser'
  - Updating the container tags of the test projects

    Setting the container versions of the test tools to a specific release
    tag.

    Change-Id: I3422be006ff80035cecc9ec22eba50b02ed97be6
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>
    (cherry picked from commit a5f91fbd49474a88d6a9c92e9da36d2cf20804ac)

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 07fb1d6..f5d0907 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 07fb1d6385bfaf93ca50b3dba74658e84ea3cdd8
+Subproject commit f5d09071d5109d9dab5c9938cf8be563e80f0b31