ARM: dts: AM33XX: Add ecap interrupt properties

Add missing interrupt properties to the ecap0, ecap1, and ecap2
nodes.
Signed-off-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am33xx.dtsi

@@ -587,6 +587,8 @@ ecap0: ecap@48300100 {
 				compatible = "ti,am33xx-ecap";
 				#pwm-cells = <3>;
 				reg = <0x48300100 0x80>;
+				interrupts = <31>;
+				interrupt-names = "ecap0";
 				ti,hwmods = "ecap0";
 				status = "disabled";
 			};
@@ -615,6 +617,8 @@ ecap1: ecap@48302100 {
 				compatible = "ti,am33xx-ecap";
 				#pwm-cells = <3>;
 				reg = <0x48302100 0x80>;
+				interrupts = <47>;
+				interrupt-names = "ecap1";
 				ti,hwmods = "ecap1";
 				status = "disabled";
 			};
@@ -643,6 +647,8 @@ ecap2: ecap@48304100 {
 				compatible = "ti,am33xx-ecap";
 				#pwm-cells = <3>;
 				reg = <0x48304100 0x80>;
+				interrupts = <61>;
+				interrupt-names = "ecap2";
 				ti,hwmods = "ecap2";
 				status = "disabled";
 			};