Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "qtip: delete container and image based with branch"
  - qtip: delete container and image based with branch

    - delete container and image based with branch
    - adjust builder sequence

    Change-Id: Id365d2358195ae690d9a4d5ae8bd1a5adfcc7046
    Signed-off-by: Julien <zhang.jun3g@zte.com.cn>
    Signed-off-by: wu.zhihui <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 6ac9920..e87c89a 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 6ac992092847f5fa45fa5178bd7e57b5a2b572e8
+Subproject commit e87c89a144107c0f764458942a174e4563082f03