Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Reorganize benchmarking tasks into ansible roles which helps to

    - group task with related templates and variables
    - simplify the main playbook to improve readability

    See: http://docs.ansible.com/ansible/playbooks_roles.html

    Change-Id: I9d3180edaac83ee9dba85ce5ac14ff574af7a905
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 441dea3..9222ecb 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 441dea324dc2442b746528e0337a539c18b85b2f
+Subproject commit 9222ecb462099f667d78494f4886d6c84f8a2310