Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Organize common tasks under qtip-common role

    Change-Id: I8592efdac7e6c2161eb7cb1b36d023697ebe7ad4
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 2189e3b..d158e53 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 2189e3bfdf1d250fa1201f89249745d4d6aab7f0
+Subproject commit d158e53addc56a9f92ecf0947eda4110c23da8ee