ARM: dts: aspeed: add missing memory unit-address

The base aspeed-g5.dtsi already defines a '/memory@80000000' node, so
'/memory' in the board files create a duplicate node. We're probably
getting lucky that the bootloader fixes up the memory node that the
kernel ends up using. Add the unit-address so it's merged with the base
node.

Found with DT json-schema checks.

Cc: Joel Stanley <[e-mail]>
Cc: Andrew Jeffery <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: [e-mail]
Signed-off-by: Rob Herring <[e-mail]>
Signed-off-by: Olof Johansson <[e-mail]>

arch/arm/boot/dts/aspeed-bmc-arm-centriq2400-rep.dts

···
 		bootargs = "console=ttyS4,115200 earlyprintk";
 	};
 
-	memory {
+	memory@80000000 {
 		reg = <0x80000000 0x40000000>;
 	};
 

arch/arm/boot/dts/aspeed-bmc-intel-s2600wf.dts

···
 		bootargs = "earlyprintk";
 	};
 
-	memory {
+	memory@80000000 {
 		reg = <0x80000000 0x20000000>;
 	};
 

arch/arm/boot/dts/aspeed-bmc-opp-lanyang.dts

···
 		bootargs = "console=ttyS4,115200 earlyprintk";
 	};
 
-	memory {
+	memory@80000000 {
 		reg = <0x80000000 0x40000000>;
 	};
 
···
 &adc {
 	status = "okay";
 };
-

arch/arm/boot/dts/aspeed-bmc-portwell-neptune.dts

···
 		bootargs = "console=ttyS4,115200 earlyprintk";
 	};
 
-	memory {
+	memory@80000000 {
 		reg = <0x80000000 0x20000000>;
 	};