Update git submodules

* Update docs/submodules/releng from branch 'master'
  - fix qtip priority issue

    missing \" for if condition
    use qtip temp dir for tempfiles

    Change-Id: I696b81b2e017f630051353f10b96f07fb85e2ec2
    Signed-off-by: Julien <zhang.jun3g@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index e5b9b0e..a3e8793 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit e5b9b0e8f136df251d75a8b147d4546f88795d54
+Subproject commit a3e87931c488c6f39e323f81573473accb4adfab