Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - make item 'extra_container' available for every project

    The item 'extra_container' used to be available for Bottlenecks only.
    Make it open for Dovetail framework.

    Change-Id: If4f2c032924447b97e401d497aca0309c0f5d847
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/dovetail b/docs/submodules/dovetail
index 13e644d..8ab783f 160000 (submodule)
--- a/docs/submodules/dovetail
+++ b/docs/submodules/dovetail
@@ -1 +1 @@
-Subproject commit 13e644d0ba893ddc5e2944c2e827fde7cd58ae72
+Subproject commit 8ab783f403984b3ef9a6c3010a9a81c0f29c4236