Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Fix output path of testing results"
  - Fix output path of testing results

    Change-Id: I2a30dd39bb847868c8869904c8b28d2bf7d784e5
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 453bc89..28fd595 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 453bc89162e4f73975cbdbacaf0bd5c3c48ed63f
+Subproject commit 28fd59520f3ef9a895e2fcb43f599011b6589ac1