Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Fix issues when running qtip first time

    - results folder not created
    - hostkey check should be skipped

    Change-Id: I658f5c459617d1651eec360edd53a8766f7387c1
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 1f8e4dd..b3557bc 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 1f8e4ddcc850e59909778cc583811353f338001a
+Subproject commit b3557bc6cf0e389459f4924fb81144fafe00b996