Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Align folder structure `docs/testing/developer` to opnfvdocs template"
  - Align folder structure `docs/testing/developer` to opnfvdocs template

    Change-Id: I9ce069cf4b5384b5788ca7cfc70e4188519667d5
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index dc36e77..1bcbfb8 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit dc36e77263438c6e12cffc374da10e6abf46739b
+Subproject commit 1bcbfb8a99e0a42bb6d5b87ade3ec15fcddc4bf7