CHROMIUM: drm/i915: Limit the GPU clock to 650MHz on Ninja/Sumo

The ninja/sumo power rails don't seem too stable, so this change
limits the GPU clock to 650MHz on the GPU for this device.

This change was previously:
https://chromium-review.googlesource.com/314110
but was dropped during the kernel 4.4 transition.

BUG=chrome-os-partner:46218, chromium:696734
TEST=sumo kernel 4.4 builds

Change-Id: Ie6a8a3d0f5ebeb17c7d552983960d52eac003b3c
Reviewed-on: https://chromium-review.googlesource.com/481224
Commit-Ready: Stéphane Marchesin <marcheu@chromium.org>
Tested-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/480975
1 file changed