dts: arm/nxp: Add lpuart1 node to NXP MCXA156 dtsi file

Add lpuart1 node to NXP MCXA156 dtsi file and add dma support
for lpuart.

Signed-off-by: Neil Chen <[email protected]>

Author: NeilChen93

dts/arm/nxp/nxp_mcxa156.dtsi

@@ -134,6 +134,19 @@
 			reg = <0x4009f000 0x1000>;
 			interrupts = <31 0>;
 			clocks = <&syscon MCUX_LPUART0_CLK>;
+			/* DMA channels 0 and 1, muxed to LPUART0 RX and TX */
+			dmas = <&edma0 0 21>, <&edma0 1 22>;
+			dma-names = "rx", "tx";
+		};
+
+		lpuart1: lpuart@400a0000 {
+			compatible = "nxp,lpuart";
+			reg = <0x400a0000 0x1000>;
+			interrupts = <32 0>;
+			clocks = <&syscon MCUX_LPUART1_CLK>;
+			/* DMA channels 2 and 3, muxed to LPUART1 RX and TX */
+			dmas = <&edma0 2 23>, <&edma0 3 24>;
+			dma-names = "rx", "tx";
 		};
 
 		fmu: flash-controller@40095000 {