Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - install "shade" for ansible openstack module

    shade is a simple client library for interacting with
    OpenStack clouds. Ansible openstack module needs it.

    Change-Id: I82a134924d052e0d046c97b349a709cdaeb5c6bf
    Signed-off-by: zhihui wu <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index e70599b..17ff159 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit e70599b4b9c23c9861ac670f111d38379505249d
+Subproject commit 17ff15959005c3c6f72a9b91192de7d54734a005