mb/google/hatch: Remove GPIO_DRIVER from pen eject GPIO configuration

A closer read of the EDS indicates that when GPIO Driver mode is
selected, GPIO input event updates are limited to GPI_STS only.
GPI_GPE_STS updates are therefore masked, and we don't want to enable
this behavior.  It masks the GPE and does not allow us to see this GPE
as a wake source, obscuring the reason that the system woke up.

Also switch the IRQ from level-triggered to edge-triggered,
otherwise the system will auto-wake from any sleep state when the
pen is ejected from the garage.

BUG=b:132981083
BRANCH=none
TEST=Wake up system from S0ix using pen eject, verify that mosys
eventlog shows GPE#8 as the S0ix wakeup source.  Wake up system from S3
via pen eject, and verify that the wakeup source shows as GPE#8.

Change-Id: If017e12e23134f5cfed7cbb6047cc9badd9bf7e8
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35459
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/hatch/variants/baseboard/gpio.c

@@ -31,7 +31,7 @@ static const struct pad_config gpio_table[] = {
 	/* A7  : PP3300_SOC_A */
 	PAD_NC(GPP_A7, NONE),
 	/* A8  : PEN_GARAGE_DET_L (wake) */
-	PAD_CFG_GPI_GPIO_DRIVER_SCI(GPP_A8, NONE, DEEP, LEVEL, NONE),
+	PAD_CFG_GPI_SCI(GPP_A8, NONE, DEEP, EDGE_SINGLE, NONE),
 	/* A9  : ESPI_CLK */
 	/* A10 : FPMCU_PCH_BOOT1 */
 	PAD_CFG_GPO(GPP_A10, 0, DEEP),