ARM: dts: socfpga: use stdout-path for chosen node

Use stdout-path dts property for kernel console.

There were two socfpga boards left not using stdout-path:
socrates and vining. Make sure they match the other boards.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_cyclone5_socrates.dts

@@ -22,7 +22,8 @@ / {
 	compatible = "ebv,socrates", "altr,socfpga-cyclone5", "altr,socfpga";
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
 	};
 
 	memory@0 {

arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts

@@ -54,7 +54,8 @@ / {
 	compatible = "samtec,vining", "altr,socfpga-cyclone5", "altr,socfpga";
 
 	chosen {
-		bootargs = "console=ttyS0,115200";
+		bootargs = "earlyprintk";
+		stdout-path = "serial0:115200n8";
 	};
 
 	memory@0 {