mb/google/poppy: Set touchpad/touchscreen IRQs to LEVEL vs EDGE

The GPIOs themselves are configured as level triggered, and the drivers
(both Linux and Windows) work better with LEVEL vs EDGE triggering.

TEST=tested with rest of patch train

Change-Id: Iee01dac943b6c2955f7af42ce0e9395fc609682f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70920
Reviewed-by: CoolStar <coolstarorganization@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/poppy/variants/rammus/devicetree.cb b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
index d5702c7..ca27c6e 100644
--- a/src/mainboard/google/poppy/variants/rammus/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
@@ -295,7 +295,7 @@
 			chip drivers/i2c/generic
 				register "hid" = ""ELAN0000""
 				register "desc" = ""ELAN Touchpad""
-				register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)"
+				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)"
 				register "wake" = "GPE0_DW0_05" # GPP_B5
 				device i2c 15 on end
 			end