Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Add integration test"
  - Add integration test

    - integrate test tasks with collector
    - require fuel-master in `~/.ssh/config` to run

    TODO:

    - integerate calculator and reporter
    - generate/execute ansible playbooks from benchmark plan

    Change-Id: I1984e07fe620e219a9eadad4a2ec668627729d31
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 1189453..8d2a3ff 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 1189453319e6a6994cfd7aa9c891d748337c191c
+Subproject commit 8d2a3ffc2bf4e909d3b1906ff252c9d8bdb1fcca