This writes the default value to the register, but it gets rid of
the error that disturbs some of our tests:
ERROR: PNP: 002e.4 70 irq size: 0x0000000001 not assigned
BRANCH=none
BUG=chrome-os-partner:23945
TEST=boot tested on Beltino
Change-Id: Ieab1c776b553c996a7d06e4059110943aaf41338
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/176145
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>