ARM: dts: uniphier: use stdout-path instead of console

Specifying both console and stdout-path is redundant.  Add options
":115200n8" to stdout-path and drop "console=ttyS0,115200".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/uniphier-ph1-ld4-ref.dts

@@ -57,8 +57,7 @@ memory {
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
-		stdout-path = &serial0;
+		stdout-path = "serial0:115200n8";
 	};
 
 	aliases {

arch/arm/boot/dts/uniphier-ph1-ld6b-ref.dts

@@ -57,8 +57,7 @@ memory {
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
-		stdout-path = &serial0;
+		stdout-path = "serial0:115200n8";
 	};
 
 	aliases {

arch/arm/boot/dts/uniphier-ph1-pro4-ref.dts

@@ -57,8 +57,7 @@ memory {
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
-		stdout-path = &serial0;
+		stdout-path = "serial0:115200n8";
 	};
 
 	aliases {

arch/arm/boot/dts/uniphier-ph1-sld3-ref.dts

@@ -58,8 +58,7 @@ memory {
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
-		stdout-path = &serial0;
+		stdout-path = "serial0:115200n8";
 	};
 
 	aliases {

arch/arm/boot/dts/uniphier-ph1-sld8-ref.dts

@@ -57,8 +57,7 @@ memory {
 	};
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
-		stdout-path = &serial0;
+		stdout-path = "serial0:115200n8";
 	};
 
 	aliases {