Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Refactor QPI module"
  - Refactor QPI module

    - Delete outdated code

    Change-Id: I0505d3ccc1ea76078f4d307f7d5ef66777ff6eb7
    Signed-off-by: Taseer Ahmed <taseer94@gmail.com>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 8c1e9c5..1542b92 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 8c1e9c553cc6b4b8b78c31e7f5f48836c0d945e1
+Subproject commit 1542b9288c494706c93a710382b42b6975592a5c