mb/google/brya/var/kano: Add gpio-keys ACPI node for PENH

Use gpio_keys driver to add ACPI node for pen eject event.  Also
setting gpio wake pin for wake events.

BUG=b:192415743
TEST=build pass

Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: Ia36119678cfd5c65a62685d3312537d9aa21e83b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59035
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
diff --git a/src/mainboard/google/brya/Kconfig b/src/mainboard/google/brya/Kconfig
index 94a1428..850a78c 100644
--- a/src/mainboard/google/brya/Kconfig
+++ b/src/mainboard/google/brya/Kconfig
@@ -14,6 +14,7 @@
 	def_bool y
 	select BOARD_ROMSIZE_KB_32768
 	select DRIVERS_GENERIC_ALC1015
+	select DRIVERS_GENERIC_GPIO_KEYS
 	select DRIVERS_GENERIC_MAX98357A
 	select DRIVERS_I2C_GENERIC
 	select DRIVERS_I2C_HID