arm: dts: berlin: use stdout-path

Use stdout-path to specify the console and remove the console argument
from the kernel command line.

Signed-off-by: Jisheng Zhang <[e-mail]>
Signed-off-by: Sebastian Hesselbarth <[e-mail]>

arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts

···
 	compatible = "sony,nsz-gs7", "marvell,berlin2", "marvell,berlin";
 
 	chosen {
-		bootargs = "console=ttyS0,115200 earlyprintk";
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
 	};
 
 	memory {

arch/arm/boot/dts/berlin2cd-google-chromecast.dts

···
 	compatible = "google,chromecast", "marvell,berlin2cd", "marvell,berlin";
 
 	chosen {
-		bootargs = "console=ttyS0,115200 earlyprintk";
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
 	};
 
 	memory {

arch/arm/boot/dts/berlin2q-marvell-dmp.dts

···
 	};
 
 	choosen {
-		bootargs = "console=ttyS0,115200 earlyprintk";
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
 	};
 
 	regulators {