ARM: dts: am437x: Fix NAND device nodes

Add compatible id, GPMC register resource and interrupt
resource to NAND controller nodes.

The GPMC node will provide an interrupt controller for the
NAND IRQs.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index df955ba..7957bd4 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -893,6 +893,8 @@
 			gpmc,num-waitpins = <2>;
 			#address-cells = <2>;
 			#size-cells = <1>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 			status = "disabled";
 		};