ARM64: dts: meson-axg: add GPIO interrupt controller support

Add the GPIO interrupt controller driver which found in the Amlogic's
Meson-AXG SoC, the controller share the similar ASIC IP as other meson SoCs.
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-axg.dtsi

@@ -151,6 +151,15 @@ cbus: bus@ffd00000 {
 			#size-cells = <2>;
 			ranges = <0x0 0x0 0x0 0xffd00000 0x0 0x25000>;
 
+			gpio_intc: interrupt-controller@f080 {
+				compatible = "amlogic,meson-gpio-intc";
+				reg = <0x0 0xf080 0x0 0x10>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>;
+				status = "disabled";
+			};
+
 			pwm_ab: pwm@1b000 {
 				compatible = "amlogic,meson-axg-ee-pwm";
 				reg = <0x0 0x1b000 0x0 0x20>;