Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Adapt Functest cvp.0.5.0 docker image

    In order to use functest cvp.0.5.0, Dovetail tool needs some adaptions.

    Change-Id: I9d0a23791c246a6c4961f229eaeb1f52f9b4995a
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 4ee77d5..5e261c5 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 4ee77d5799f1ba5011d11a576a25bdcaeac74187
+Subproject commit 5e261c5ac601ba48bdf358de184337a1be954ff4