Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Move storage-qpi proposal to devguide

    Change-Id: I91402f15ac3fafce112c2568e0e3b8b3464ba1d5
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 4bc87f5..672dee1 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 4bc87f5dc55cfbcc1cc7cdcbd1b6414d0da1e987
+Subproject commit 672dee17fb667d18036cf855458cd8a5f86e860a