Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  to ba9ea6b6174e6aef5d4fba1ce184f2ff85b93ce2
  - Update git patch script for new tempest version

    Change-Id: I0d511e3e4570fed5d2afb09335fcbe7d90a2ab5f
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index d20dd6a..ba9ea6b 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit d20dd6a164c77ab9acbfb1d74ea39a991d942e43
+Subproject commit ba9ea6b6174e6aef5d4fba1ce184f2ff85b93ce2