Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Add todo items for integration

    Change-Id: I15cc5f81cc4aee27d536e8f654aa36c16c27c72b
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index a4878f6..9972903 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit a4878f6c98855f5392324e0e72df3e2711022dd9
+Subproject commit 9972903bcd841e2733c7f842f8471fff9a928a2a