Update git submodules

* Update docs/submodules/qtip from branch 'stable/euphrates'
  - Merge "Fix error in CI job" into stable/euphrates
  - Fix error in CI job

    Add /root/.ssh/ as SSH_CREDENTIALS

    Change-Id: I9b9c8701be6245715644a11916a8f7df97ba5d0f
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>
    (cherry picked from commit fc71d3d7e3927b4ca2cbd657c140cf43c90c49d3)

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 5d67fdf..e4dda9d 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 5d67fdf522b7ba460f8337e3c6cfea3b340c46f8
+Subproject commit e4dda9d2fb2247ac03cddc0712c3956e8cbcd4fd