fixup! arch: arm64: apple: t600x: Add display controller related device tree nodes

Move piodma node as child node under dcp.

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

arch/arm64/boot/dts/apple/t600x-die0.dtsi

@@ -176,11 +176,6 @@
 		};
 	};
 
-	disp0_piodma: mapper@38a000000 {
-		compatible = "apple,t6000-dcp-piodma", "apple,dcp-piodma";
-		iommus = <&disp0_dart 4>;
-	};
-
 	disp0_dart: iommu@38b304000 {
 		compatible = "apple,t6000-dart";
 		reg = <0x3 0x8b304000 0x0 0x4000>;
@@ -232,8 +227,13 @@
 		resets = <&ps_disp0_cpu0>;
 		clocks = <&clk_disp0>;
 		apple,asc-dram-mask = <0>;
-		apple,piodma-mapper = <&disp0_piodma>;
 		phandle = <&dcp>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+
+		disp0_piodma: piodma {
+			iommus = <&disp0_dart 4>;
+		};
 	};
 
 	display: display-subsystem {