arm64: dts: imx8mp: Enable spba-bus on AIPS3

There is an SPBA bus on AIPS3 which includes ecspi1-3,
UART1-3, and Flexcan1-2 according to the TRM.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp.dtsi

@@ -730,6 +730,13 @@ aips3: bus@30800000 {
 			#size-cells = <1>;
 			ranges;
 
+			spba-bus@30800000 {
+				compatible = "fsl,spba-bus", "simple-bus";
+				reg = <0x30800000 0x100000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges;
+
 				ecspi1: spi@30820000 {
 					#address-cells = <1>;
 					#size-cells = <0>;
@@ -846,6 +853,7 @@ flexcan2: can@308d0000 {
 					fsl,stop-mode = <&gpr 0x10 5>;
 					status = "disabled";
 				};
+			};
 
 			crypto: crypto@30900000 {
 				compatible = "fsl,sec-v4.0";