ARM: dts: rockchip: Move uart aliases to SoC dtsi for RK3128

SoC TRM, SoC datasheet and board schematics always refer to the
same uart numbers - even if not all are used for a specific board.
In order to not have to re-define them for every board move the
aliases to SoC dtsi for RK3128 like it's being done for all other
Rockchip ARM SoCs.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20231202130506.66738-5-knaerzche@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rockchip/rk3128-xpi-3128.dts

@@ -14,7 +14,6 @@ aliases {
 		ethernet0 = &gmac;
 		mmc0 = &emmc;
 		mmc1 = &sdmmc;
-		serial0 = &uart1;
 	};
 
 	memory@60000000 {
@@ -23,7 +22,7 @@ memory@60000000 {
 	};
 
 	chosen {
-		stdout-path = "serial0:115200n8";
+		stdout-path = &uart1;
 	};
 
 	adc-keys {

arch/arm/boot/dts/rockchip/rk3128.dtsi

@@ -25,6 +25,9 @@ aliases {
 		i2c1 = &i2c1;
 		i2c2 = &i2c2;
 		i2c3 = &i2c3;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
 	};
 
 	arm-pmu {