Update git submodules

* Update docs/submodules/dovetail from branch 'stable/fraser'
  - Eliminating docs build warning

    Eliminating a build warning from the Tempest volume description and
    aligning its layout with other test case descriptions.

    Change-Id: Idb9ba8d77ef3cb7e14a5b24a8a81622fa0e3e30d
    Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>
    (cherry picked from commit 4413f0693b34158af4a4fd86eca5762e42f232ed)

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index f19475c..07fb1d6 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit f19475c6c64c8401b896aa6f34ce06f914476fdc
+Subproject commit 07fb1d6385bfaf93ca50b3dba74658e84ea3cdd8