arm64: dts: imx8dxl: add fsl-dma.h dt-binding header file

Add fsl-dma.h dt-binding header file in imx8dxl chip dtsi file.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8dxl.dtsi

@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/clock/imx8-clock.h>
+#include <dt-bindings/dma/fsl-edma.h>
 #include <dt-bindings/firmware/imx/rsrc.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>