ARM: dts: socfpga: Add unit name to memory nodes

Memory nodes in Arria5, Cyclone5 and Arria10 do not have a unit name.
This will trigger several warnings like this one (when compiled with
W=1):

Node /memory has a reg or ranges property, but no unit name

Add the corresponding unit name to each node.
Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_arria10_socdk.dtsi

@@ -30,7 +30,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_arria5_socdk.dts

@@ -26,7 +26,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_cyclone5_de0_sockit.dts

@@ -25,7 +25,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_cyclone5_mcv.dtsi

@@ -21,7 +21,7 @@ / {
 	model = "Aries/DENX MCV";
 	compatible = "altr,socfpga-cyclone5", "altr,socfpga";
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1 GiB */

arch/arm/boot/dts/socfpga_cyclone5_socdk.dts

@@ -26,7 +26,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_cyclone5_sockit.dts

@@ -26,7 +26,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_cyclone5_socrates.dts

@@ -25,7 +25,7 @@ chosen {
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_cyclone5_sodia.dts

@@ -28,7 +28,7 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>;

arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts

@@ -57,7 +57,7 @@ chosen {
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1GB */

arch/arm/boot/dts/socfpga_vt.dts

@@ -26,7 +26,7 @@ chosen {
 		bootargs = "console=ttyS0,57600";
 	};
 
-	memory {
+	memory@0 {
 		name = "memory";
 		device_type = "memory";
 		reg = <0x0 0x40000000>; /* 1 GB */