CoachZ: Pull down WLC IRQ
CoachZ: Pull down WLC IRQ

ctn730 push-pulls the IRQ line. When it's off, the line should stay
low to prevent the EC from getting false IRQ.

This patch also configures the ctn730 reset line as GPIO_ODR_HIGH so
that the line is kept high and a reset can be issued if needed.

BUG=b:173235954, b:178096436
BRANCH=trogdor
TEST=CoachZ. Verified reset line goes up and down by gpioset.

Signed-off-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>
Change-Id: I0023d9a980826a6ea4741459a0b65c2cc11e6106
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2656766
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec