ARM: tegra: acer-a500: Use verbose variant of atmel,wakeup-method value

The verbose variant of the atmel,wakeup-method value was lost when patch
that added the property was merged because it conflicted with other patch,
re-add it for consistency.
Signed-off-by: NDmitry Osipenko <digetx@gmail.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra20-acer-a500-picasso.dts

 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
+#include <dt-bindings/input/atmel-maxtouch.h>
 #include <dt-bindings/input/gpio-keys.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/thermal/thermal.h>
@@ -454,7 +455,7 @@
 			vdda-supply = <&vdd_3v3_sys>;
 			vdd-supply  = <&vdd_3v3_sys>;
 
-			atmel,wakeup-method = <1>;
+			atmel,wakeup-method = <ATMEL_MXT_WAKEUP_I2C_SCL>;
 		};
 
 		gyroscope@68 {