stoneyridge: Enable legacy IO

Legacy IO enables access to RTC IO 0x70-0x73. This is needed for CMOS to
function correctly.

BUG=b:110817463
TEST=ran firmware_CorruptFwSigB on grunt

Change-Id: I533226ba764f567e348577d7fcf6ebe43336609a
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://review.coreboot.org/27268
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
2 files changed