Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Add default to --report CLI option

    - Try new license header to deal with anteater failure

    - Ability to specify 'default' as argument to --report, which
    fetches host IP automatically and forms URL with 8000 as testapi
    port
    - This should not break the previous behavior of report option,
    if default option not specified

    Change-Id: I1e05bb52cf4fc211c59796d4e763e2e04177b406
    Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 2b9b8e3..e57e406 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 2b9b8e3340af8087ebdcc1e7f8b33fdff4304ec0
+Subproject commit e57e40687c47c3a50ecaae43e153b2ca8981423c