arm64: dts: imx8mm: Add spba1 and spba2 buses

The i.MX8MM reference manual shows there are two spba busses.
SPBA1 handles much of the serial interfaces, and SPBA2 covers much
of the audio.

Add both of them.
Signed-off-by: NAdam Ford <aford173@gmail.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm.dtsi

@@ -271,6 +271,13 @@
 			#size-cells = <1>;
 			ranges = <0x30000000 0x30000000 0x400000>;
 
+			spba2: spba-bus@30000000 {
+				compatible = "fsl,spba-bus", "simple-bus";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				reg = <0x30000000 0x100000>;
+				ranges;
+
 				sai1: sai@30010000 {
 					#sound-dai-cells = <0>;
 					compatible = "fsl,imx8mm-sai", "fsl,imx8mq-sai";
@@ -383,6 +390,7 @@
 					dma-names = "rx", "tx";
 					status = "disabled";
 				};
+			};
 
 			gpio1: gpio@30200000 {
 				compatible = "fsl,imx8mm-gpio", "fsl,imx35-gpio";
@@ -670,6 +678,13 @@
 			ranges = <0x30800000 0x30800000 0x400000>,
 				 <0x8000000 0x8000000 0x10000000>;
 
+			spba1: spba-bus@30800000 {
+				compatible = "fsl,spba-bus", "simple-bus";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				reg = <0x30800000 0x100000>;
+				ranges;
+
 				ecspi1: spi@30820000 {
 					compatible = "fsl,imx8mm-ecspi", "fsl,imx51-ecspi";
 					#address-cells = <1>;
@@ -745,6 +760,7 @@
 					clock-names = "ipg", "per";
 					status = "disabled";
 				};
+			};
 
 			crypto: crypto@30900000 {
 				compatible = "fsl,sec-v4.0";