bcm63xx: bcm63268: fix GPIO interrupts

pinctrl should rely on external interrupt controller for GPIO interrupts.

Signed-off-by: Álvaro Fernández Rojas <[email protected]>

target/linux/bcm63xx/dts/bcm63268.dtsi

@@ -84,7 +84,7 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 
-			interrupt-parent = <&periph_intc>;
+			interrupt-parent = <&ext_intc>;
 			interrupts = <0 0>, <1 0>, <2 0>, <3 0>;
 			interrupt-names = "gpio32", "gpio33", "gpio34", "gpio35";