ARM: dts: imx53: Fix memory node duplication

Boards based on imx53 have duplicate memory nodes:

- One coming from the board dts file: memory@

- One coming from the imx53.dtsi file.

Fix the duplication by removing the memory node from the dtsi file
and by adding 'device_type = "memory";' in the board dts.

Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx53-ard.dts

@@ -19,6 +19,7 @@
 	compatible = "fsl,imx53-ard", "fsl,imx53";
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x40000000>;
 	};
 

arch/arm/boot/dts/imx53-cx9020.dts

@@ -22,6 +22,7 @@
 	};
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x20000000>,
 		      <0xb0000000 0x20000000>;
 	};

arch/arm/boot/dts/imx53-m53.dtsi

@@ -16,6 +16,7 @@
 	compatible = "aries,imx53-m53", "denx,imx53-m53", "fsl,imx53";
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x20000000>,
 		      <0xb0000000 0x20000000>;
 	};

arch/arm/boot/dts/imx53-qsb-common.dtsi

@@ -11,6 +11,7 @@
 	};
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x20000000>,
 		      <0xb0000000 0x20000000>;
 	};

arch/arm/boot/dts/imx53-smd.dts

@@ -12,6 +12,7 @@
 	compatible = "fsl,imx53-smd", "fsl,imx53";
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x40000000>;
 	};
 

arch/arm/boot/dts/imx53-tqma53.dtsi

@@ -17,6 +17,7 @@
 	compatible = "tq,tqma53", "fsl,imx53";
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x40000000>; /* Up to 1GiB */
 	};
 

arch/arm/boot/dts/imx53-tx53.dtsi

@@ -51,6 +51,7 @@
 
 	/* Will be filled by the bootloader */
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0>;
 	};
 

arch/arm/boot/dts/imx53-usbarmory.dts

@@ -58,6 +58,7 @@
 	};
 
 	memory@70000000 {
+		device_type = "memory";
 		reg = <0x70000000 0x20000000>;
 	};
 

arch/arm/boot/dts/imx53.dtsi

@@ -23,10 +23,8 @@
 	 * The decompressor and also some bootloaders rely on a
 	 * pre-existing /chosen node to be available to insert the
 	 * command line and merge other ATAGS info.
-	 * Also for U-Boot there must be a pre-existing /memory node.
 	 */
 	chosen {};
-	memory { device_type = "memory"; };
 
 	aliases {
 		ethernet0 = &fec;