baytrail: program PUNIT memory-mapped base address

Apparently there was another BAR living at 0x5c in the LPC
bridge that mapped the PUNIT registers. EDS 2.0 released
and this register is now documented.

BUG=chrome-os-partner:23085
BRANCH=None
TEST=Built and booted.

Change-Id: I5892c2a14923b57826060e92b4335cb1952ea057
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171612
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
3 files changed