arm64: dts: uniphier: Add ethernet aliases

Add 'aliases' properties for ethernet device.

U-Boot performs a fix-up of the MAC address and will overwrite the values
from the Linux devicetree for aliased ethernet device. The MAC address can
be inherited from U-Boot by adding aliases of ethernet devices.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm64/boot/dts/socionext/uniphier-ld11-global.dts

@@ -30,6 +30,7 @@ aliases {
 		i2c3 = &i2c3;
 		i2c4 = &i2c4;
 		i2c5 = &i2c5;
+		ethernet0 = ð
 	};
 
 	memory@80000000 {

arch/arm64/boot/dts/socionext/uniphier-ld11-ref.dts

@@ -29,6 +29,7 @@ aliases {
 		i2c3 = &i2c3;
 		i2c4 = &i2c4;
 		i2c5 = &i2c5;
+		ethernet0 = ð
 	};
 
 	memory@80000000 {

arch/arm64/boot/dts/socionext/uniphier-ld20-global.dts

@@ -30,6 +30,7 @@ aliases {
 		i2c3 = &i2c3;
 		i2c4 = &i2c4;
 		i2c5 = &i2c5;
+		ethernet0 = ð
 	};
 
 	memory@80000000 {

arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts

@@ -29,6 +29,7 @@ aliases {
 		i2c3 = &i2c3;
 		i2c4 = &i2c4;
 		i2c5 = &i2c5;
+		ethernet0 = ð
 	};
 
 	memory@80000000 {

arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts

@@ -29,6 +29,8 @@ aliases {
 		i2c6 = &i2c6;
 		spi0 = &spi0;
 		spi1 = &spi1;
+		ethernet0 = &eth0;
+		ethernet1 = &eth1;
 	};
 
 	memory@80000000 {