Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Merge "Test case specification for VIM Image"
  - Test case specification for VIM Image

    1. Adding the alias VIM image test cases into testscope.
    2. Adding test case specification for VIM Image.

    Change-Id: Ifa7aa5ddea22d2862ee5d8ad465523d450a78fde
    Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index ed22736..a01165e 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit ed22736fc867f35bb1e5e79715f5f76619358a99
+Subproject commit a01165e817b8b63ac471ad9fff798337ad0abc97