baytrail: initialize perf/power registers

According to the reference code all these registers
need to be set to their best known values.

BUG=chrome-os-partner:24345
BRANCH=None
TEST=Built and booted. Suspend and wake. No idea about
     observable impact yet.

Change-Id: I0e31505a165eee1d177e5d726edcfa6947430476
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/179749
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/5008
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2 files changed