Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "[dovetail] generate a results package for testing Dovetail web portal"
  - [dovetail] generate a results package for testing Dovetail web portal

    Change-Id: I3b9f06807ebf581e3f74286f479519937b75b06f
    Signed-off-by: xudan <xudan16@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index e1237bb..cb5f2f6 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit e1237bbaa4e7ebd0fba8d3a254a8addbec4724e6
+Subproject commit cb5f2f65722e5f30812145cc612b69dbf04c19e3