mb/google/poppy/variant/nautilus: Configure GPP_B0 for WLAN wake

As per the latest schematics, this change configures GPP_B0 as wake
source for WLAN.

BUG=NONE
BRANCH=master
TEST=emerge-nautilus coreboot

Signed-off-by: Seunghwan Kim <sh_.kim@samsung.com>
Change-Id: I72b940452cfbbe471279ef117a868a8ae0b65b8b
Reviewed-on: https://review.coreboot.org/23526
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2 files changed