CHROMIUM: MALI: Add Mali platform specific source

Create platform specific folder and source files
Add clock, power and regulator control
Support for GPU devfreq

BUG=b:109911488
Test=emerge-kukui sys-kernel/chromeos-kernel-4_19

Change-Id: I4e55458efb008553050e78703e09ac69d07ea21d
Signed-off-by: Nick Fan <Nick.Fan@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/1317240
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Nick Fan <nick.fan@mediatek.corp-partner.google.com>
8 files changed