omap3_logic: Change console from ttyO0 to ttyS0

Newer kernels have moved from ttyO0 to ttyS0, and when booting
it drops a notice:

  WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
  This ensures that you still see kernel messages. Please
  update your kernel commandline.

This patch updates the console to use ttyS0 and eliminate the
chatter.
Signed-off-by: NAdam Ford <aford173@gmail.com>

include/configs/omap3_logic.h

@@ -92,7 +92,7 @@
 			"fi; " \
 		"else run defaultboot; fi\0" \
 	"defaultboot=run mmcramboot\0" \
-	"consoledevice=ttyO0\0" \
+	"consoledevice=ttyS0\0" \
 	"setconsole=setenv console ${consoledevice},${baudrate}n8\0" \
 	"dump_bootargs=echo 'Bootargs: '; echo $bootargs\0" \
 	"rotation=0\0" \