Merge tag 'arm-soc/for-6.3/devicetree-arm64' of https://github.com/Broadcom/stblinux into arm/dt

This pull request contains Broadcom ARM64 SoCs Device Tree updates for
6.3, please pull the following:

- Krzysztof aligns the SMMMU Device Tree nodes to use the desired
  regular expression matched by the dtschema and he also removes the
  deprecated "device_type" property for serial node(s)

* tag 'arm-soc/for-6.3/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: dts: broadcom: drop deprecated serial device_type
  arm64: dts: broadcom: align SMMU node names with DT schema

Link: https://lore.kernel.org/r/20230128193834.1628831-1-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi

@@ -294,7 +294,7 @@
 			clock-names = "apb_pclk";
 		};
 
-		smmu: mmu@64000000 {
+		smmu: iommu@64000000 {
 			compatible = "arm,mmu-500";
 			reg = <0x64000000 0x40000>;
 			#global-interrupts = <2>;

arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi

@@ -186,7 +186,7 @@
 			};
 		};
 
-		smmu: mmu@3000000 {
+		smmu: iommu@3000000 {
 			compatible = "arm,mmu-500";
 			reg = <0x03000000 0x80000>;
 			#global-interrupts = <1>;
@@ -475,7 +475,6 @@
 		};
 
 		uart0: serial@100000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00100000 0x1000>;
 			reg-shift = <2>;
@@ -486,7 +485,6 @@
 		};
 
 		uart1: serial@110000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00110000 0x1000>;
 			reg-shift = <2>;
@@ -497,7 +495,6 @@
 		};
 
 		uart2: serial@120000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00120000 0x1000>;
 			reg-shift = <2>;
@@ -508,7 +505,6 @@
 		};
 
 		uart3: serial@130000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00130000 0x1000>;
 			reg-shift = <2>;