Update git submodules

* Update docs/submodules/qtip from branch 'master'
  - Merge "improve the regex for matching "cpu""
  - improve the regex for matching "cpu"

    CPU brand should not include cpu speed.

    Change-Id: I6938150313fda092b83df981d3622535bdf7decb
    Signed-off-by: zhihui wu <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/qtip b/docs/submodules/qtip
index acd3778..bffa8de 160000 (submodule)
--- a/docs/submodules/qtip
+++ b/docs/submodules/qtip
@@ -1 +1 @@
-Subproject commit acd3778e3d3ede9828408b67adef374a76493238
+Subproject commit bffa8def6b8df835f59e1129a0e19eac2f04a068