broadwell: Disable ADSP power gating feature by default

Disable ADSP D3 and SRAM power gating features by default, and make
the devicetree.cb flags into enable flags instead of disable.

BUG=chrome-os-partner:31588
BRANCH=samus,auron
TEST=build and boot on samus

Change-Id: Ibda298b995b07a2826a406e74e0d244b1fd97746
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: b81ef37c036d61dc56e650796227dcc84a7ccc89
Original-Change-Id: Ib881290acc07819b55d776d4696bf0062df4d50e
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/220863
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9218
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2 files changed