kunimitsu: Enable wake-on-wifi

kunimitsu: Enable wake-on-wifi

- Assign GPE DW0 to GPP_B block
- Enable GPP_B16 as ACPI_SCI for wake
- Define PCIe WLAN device in ACPI with GPE0_DW0_16 for _PRW

Note that current designs cannot wake from Deep S3 via wifi.

BUG=chrome-os-partner:40635
BRANCH=none
TEST=emerge-kunimitsu coreboot

Change-Id: I1fe15a5a9b3d868a0e4f1bfb102b69f024c3aa48
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: de9dfee840246866a8dcca2e1c42c0292e820529
Original-Change-Id: I926d74b6bcf6d64c3db61ed23d7c17b51a98b052
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/298232
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11651
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>