Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge ceph info roles

    Change-Id: I83be70cf24be2a9da0a0f82e44810b1e9ff2b3b8
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 5041eb2..c6d9fcb 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 5041eb2f128eb2c9bb3c1715a4442fa5605eee6e
+Subproject commit c6d9fcbffa0146ef968be0594b4c1afe98c3ee57