mb/google/nissa/var/nivviks: Enable pen garage

Enable pen garage. Pen detect is active low. And wake system when
eject.

BUG=b:223476974
TEST=evtest work as expected.
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "PRP0001:00"
Supported events:
  Event type 0 (EV_SYN)
  Event type 5 (EV_SW)
    Event code 15 (SW_PEN_INSERTED) state 0
Properties:
Testing ... (interrupt to exit)
Event: type 5 (EV_SW), code 15 (SW_PEN_INSERTED), value 1
Event: -------------- SYN_REPORT ------------
Event: type 5 (EV_SW), code 15 (SW_PEN_INSERTED), value 0

Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: I2f676301c3372a4760853ce9c10b75f94e22bbcd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62675
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
diff --git a/src/mainboard/google/brya/variants/nivviks/overridetree.cb b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
index 8ccbac7..d5d0621 100644
--- a/src/mainboard/google/brya/variants/nivviks/overridetree.cb
+++ b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
@@ -47,6 +47,18 @@
 				register "hid_desc_reg_offset" = "0x01"
 				device i2c 15 on end
 			end
+			chip drivers/generic/gpio_keys
+				register "name" = ""PENH""
+				register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPP_F13)"
+				register "key.wake_gpe" = "GPE0_DW2_15"
+				register "key.wakeup_route" = "WAKEUP_ROUTE_SCI"
+				register "key.wakeup_event_action" = "EV_ACT_DEASSERTED"
+				register "key.dev_name" = ""EJCT""
+				register "key.linux_code" = "SW_PEN_INSERTED"
+				register "key.linux_input_type" = "EV_SW"
+				register "key.label" = ""pen_eject""
+				device generic 0 on end
+			end
 		end
 		device ref i2c2 on
 			chip drivers/i2c/sx9324