Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  to 4f881e39e996e77d94c191d4e0d8209871709b82
  - Use Functest blacklist to exclude the sub test cases of patrole

    1. using blacklist to exclude some sub test cases
    2. update the patrole scope according to Hunter using patrole 0.4.0

    Change-Id: I32de419e482cf2f2d7289dba48155f3d09fdec91
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index d1091a5..4f881e3 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit d1091a5e7c5f6b466d678fca0f47801d3e3f0e1a
+Subproject commit 4f881e39e996e77d94c191d4e0d8209871709b82