Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Add user guide for using ansible-playbook to run QTIP benchmarks

    Change-Id: Ic04f83d91447944ed0fa507d6fffeed0a18b65fe
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index be99514..ce72737 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit be99514715dc91e860a73dbc62c654dac36e8484
+Subproject commit ce727379caaab380570df2d98b7bd992cb0fbff7