ARM: dts: omap24xx: Enable gpio and interrupt controller for GPMC

GPMC driver provides interrupts and gpio for the GPMC_WAIT pins.
Mark it as gpio and interrupt capable.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap2420.dtsi

@@ -130,6 +130,10 @@ gpmc: gpmc@6800a000 {
 			gpmc,num-cs = <8>;
 			gpmc,num-waitpins = <4>;
 			ti,hwmods = "gpmc";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		mcbsp1: mcbsp@48074000 {

arch/arm/boot/dts/omap2430.dtsi

@@ -154,6 +154,10 @@ gpmc: gpmc@6e000000 {
 			gpmc,num-cs = <8>;
 			gpmc,num-waitpins = <4>;
 			ti,hwmods = "gpmc";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		mcbsp1: mcbsp@48074000 {