Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Update readme of running with native `ansible-playbook` command"
  - Update readme of running with native `ansible-playbook` command

    Change-Id: Idd021dd6301c7ced7658460622ba4961b071c3c2
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 4f9a0d9..284cc6f 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 4f9a0d9f7c60a9e69864469e1254af6269ef3d9a
+Subproject commit 284cc6fe24375ad6d32cc567d0c64eedc1a4f4b7