Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Refactoring connection task

    - split `compute` playbook into `setup` and `run`
    - save inventory and ssh configuration after in `setup`

    Change-Id: I0803a954ffcd7c07861ff6bdb76acdbfaa4815bd
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 984be06..8ee7065 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 984be06d90caa765bf8bc035546f0e33e7784dec
+Subproject commit 8ee70654479bff695a6781a9f3eaea9f5eb6b765