Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Add ceph-cache-info role to get the ceph client cache info from ceph nodes."
  - Add ceph-cache-info role to get the ceph client cache info from ceph
    nodes.

    JIRA: QTIP-254

    Change-Id: I3dc9671da038db792807b8cd55859ffa60619670
    Signed-off-by: zhifeng.jiang <jiang.zhifeng@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 3f64856..96f5a4c 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 3f64856916977aedaf3fda7ef32d665cbaae1858
+Subproject commit 96f5a4cd4ffdbb39d2357436a8ec84a57eb94d6f