Update git submodules

* Update docs/submodules/qtip from branch 'stable/euphrates'
  - Download ramspeed from new url

    The original one has expired

    Change-Id: I0e362daf0308c5f0915bf1f652f3ab7d14373e91
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>
    (cherry picked from commit d9703d50adf954f2960d422f8f78745c806bc181)

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index d30576b..30e5437 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit d30576b671e8ea47ff30851b24285ee0cc2b9ec4
+Subproject commit 30e54370f3b2326234daa94bc14d9eeb9610cdbb