Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "Mitigating for missing values in storage QPI."
  - Mitigating for missing values in storage QPI.

    - Update unit tests

    Change-Id: I7bfe89dc6bbe1cafe13b2f3e4f9356a06a59c68b
    Signed-off-by: Taseer Ahmed <taseer94@gmail.com>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index 4154a75..b2336bd 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit 4154a75853f6ba004de775194ebffbe00b591012
+Subproject commit b2336bd1742797e0f38063f654646f115dd62e45