Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Replace Qtip with QTIP"
  - Replace Qtip with QTIP

    Change-Id: I4f187f86f5bb519d836864778f815fcea2fa9545
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 0c279ed..b9060bd 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 0c279edfee98729cf72da837e1236516676ffc61
+Subproject commit b9060bdf88bb793e67bd2297d842705c5fdfa510