Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Use ansible roles to setup development tools"
  - Use ansible roles to setup development tools

    Change-Id: I897773edf8dcacf08e67fa3eb999c4c10ba22805
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 0e64642..4877090 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 0e64642d1a62b4b0f319d2cfa0baa011b07c7520
+Subproject commit 48770903149a800d5cc9ddecc490001ffd9688a8