ARM: shmobile: marzen: Board specific serial port order

Convert Marzen to use board-specific serial0 and serial1 instead
of the older shared SoC-specific SCIF index.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7779-marzen.dts

@@ -19,12 +19,12 @@
 	compatible = "renesas,marzen", "renesas,r8a7779";
 
 	aliases {
-		serial2 = &scif2;
-		serial4 = &scif4;
+		serial0 = &scif2;
+		serial1 = &scif4;
 	};
 
 	chosen {
-		bootargs = "console=ttySC2,115200 ignore_loglevel root=/dev/nfs ip=on";
+		bootargs = "ignore_loglevel root=/dev/nfs ip=on";
 		stdout-path = &scif2;
 	};