Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Tag dovetail with cvp.0.5.0

    JIRA: DOVETAIL-483

    1. docker image used
       yardstick: danube.3.2
       functest: cvp.0.5.0
       bottlenecks: cvp.0.4.0
       testapi: cvp.0.5.0
       dovetail: cvp.0.5.0
    2. main changes
       Bugfix: wrong command in function 'check_https_enabled'
       Use opnfv/functest:cvp.0.5.0 and do some adaptions in dovetail tool
       Create a tar file for all logs
       Add tempest test cases into proposed_tests
       Fix testapi base_url for public_url
       Add user guide for results operations on web
    3. For more information, refer to
       https://wiki.opnfv.org/display/dovetail/Running+history+for+the+dovetail+tool

    Change-Id: Iec548b077a704ff68d6b93de3436e109d59371cd
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 4331275..3f25a0a 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 433127537222120963133546bc7cde6bd2786858
+Subproject commit 3f25a0a90a034f999e06f5475c857cf12d6ce43b