Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Enable test result pushing in periodic job

    Change-Id: I06629a3155c1a49e79f618afab29591578354b54
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index b95adaf..90ff55b 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit b95adaf14afff4215f773b2ef150fbc4b3a00ef6
+Subproject commit 90ff55b51817c23d5070765435c69b585bd184fd