arch: arm64: apple: t8103: Use standard "iommu" node name

[ Upstream commit 56d32c5 ]

The PCIe iommu nodes use "dart" as node names. Replace it with the
the standard "iommu" node name as all other iommu nodes.

Fixes: 3c866bb ("arm64: dts: apple: t8103: Add PCIe DARTs")
Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arch/arm64/boot/dts/apple/t8103.dtsi

@@ -412,7 +412,7 @@
 			resets = <&ps_ans2>;
 		};
 
-		pcie0_dart_0: dart@681008000 {
+		pcie0_dart_0: iommu@681008000 {
 			compatible = "apple,t8103-dart";
 			reg = <0x6 0x81008000 0x0 0x4000>;
 			#iommu-cells = <1>;
@@ -421,7 +421,7 @@
 			power-domains = <&ps_apcie_gp>;
 		};
 
-		pcie0_dart_1: dart@682008000 {
+		pcie0_dart_1: iommu@682008000 {
 			compatible = "apple,t8103-dart";
 			reg = <0x6 0x82008000 0x0 0x4000>;
 			#iommu-cells = <1>;
@@ -430,7 +430,7 @@
 			power-domains = <&ps_apcie_gp>;
 		};
 
-		pcie0_dart_2: dart@683008000 {
+		pcie0_dart_2: iommu@683008000 {
 			compatible = "apple,t8103-dart";
 			reg = <0x6 0x83008000 0x0 0x4000>;
 			#iommu-cells = <1>;