ARM: dts: e60k02: add interrupt for PMIC

Since the PMIC driver now has IRQ handling, add the GPIO to
listen to things like RTC alarm or ADC conversion completion.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/e60k02.dtsi

@@ -117,6 +117,8 @@ &i2c3 {
 	ricoh619: pmic@32 {
 		compatible = "ricoh,rc5t619";
 		reg = <0x32>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
 		system-power-controller;
 
 		regulators {