Blackfin: update default console= settings

The Linux kernel has changed the way it numbers serial ports, so update
the default command line to match it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

include/configs/bfin_adi_common.h

@@ -138,7 +138,7 @@
 		"uart" MK_STR(CONFIG_UART_CONSOLE) "," \
 		MK_STR(CONFIG_BAUDRATE) " " \
 	CONFIG_BOOTARGS_VIDEO \
-	"console=ttyBF0," MK_STR(CONFIG_BAUDRATE)
+	"console=ttyBF" MK_STR(CONFIG_UART_CONSOLE) "," MK_STR(CONFIG_BAUDRATE)
 #if defined(CONFIG_CMD_NAND)
 # define NAND_ENV_SETTINGS \
 	"nandargs=set bootargs " CONFIG_BOOTARGS "\0" \