ARM: exynos: dts: cros5250: add cyapa trackpad

Trivial patch, adding the i2c Cypress trackpad used on Snow.
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/cros5250-common.dtsi

@@ -175,6 +175,14 @@ buck8_reg: BUCK8 {
 	i2c@12C70000 {
 		samsung,i2c-sda-delay = <100>;
 		samsung,i2c-max-bus-freq = <378000>;
+
+		trackpad {
+			reg = <0x67>;
+			compatible = "cypress,cyapa";
+			interrupts = <2 0>;
+			interrupt-parent = <&gpx1>;
+			wakeup-source;
+		};
 	};
 
 	i2c@12C80000 {