Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Fix error in CI job

    Add /root/.ssh/ as SSH_CREDENTIALS

    Change-Id: I9b9c8701be6245715644a11916a8f7df97ba5d0f
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 2508639..fc71d3d 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 25086394f9ebd7bd90698ea54734f27ee9d4517e
+Subproject commit fc71d3d7e3927b4ca2cbd657c140cf43c90c49d3