Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Add example storage benchmarking project running on zte-pod4

    TODO: add project generator for storage benchmarking

    Change-Id: Ibed1e1ce2fc3948b08564f19b6bc680c88bf039a
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 1720993..5041eb2 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 17209935c79e52f763aa41fd5da8a3c0f847e994
+Subproject commit 5041eb2f128eb2c9bb3c1715a4442fa5605eee6e