hotfix: dts/imx8mp: drop duplicated dsp node

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>

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

@@ -263,17 +263,6 @@ clk_ext4: clock-ext4 {
 		clock-output-names = "clk_ext4";
 	};
 
-	reserved-memory {
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dsp_reserved: dsp@92400000 {
-			reg = <0 0x92400000 0 0x2000000>;
-			no-map;
-		};
-	};
-
 	sai1_mclk: sai-mclk1 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
@@ -1110,14 +1099,6 @@ mu: mailbox@30aa0000 {
 				#mbox-cells = <2>;
 			};
 
-			mu2: mailbox@30e60000 {
-				compatible = "fsl,imx8mp-mu", "fsl,imx6sx-mu";
-				reg = <0x30e60000 0x10000>;
-				interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
-				#mbox-cells = <2>;
-				status = "disabled";
-			};
-
 			i2c5: i2c@30ad0000 {
 				compatible = "fsl,imx8mp-i2c", "fsl,imx21-i2c";
 				#address-cells = <1>;
@@ -2230,17 +2211,6 @@ usb_dwc3_1: usb@38200000 {
 			};
 		};
 
-		dsp: dsp@3b6e8000 {
-			compatible = "fsl,imx8mp-dsp";
-			reg = <0x3b6e8000 0x88000>;
-			mbox-names = "txdb0", "txdb1",
-				"rxdb0", "rxdb1";
-			mboxes = <&mu2 2 0>, <&mu2 2 1>,
-				<&mu2 3 0>, <&mu2 3 1>;
-			memory-region = <&dsp_reserved>;
-			status = "disabled";
-		};
-
 		edacmc: memory-controller@3d400000 {
 			compatible = "fsl,imx8mp-ddrc";
 			reg = <0x3d400000 0x400000>;