Revert "arm: config: fix default console only to specify the device"

This reverts commit 232ed3ca534708527a9515c7c41bc3542949525c.

In exynos boards, ${console} is used to set bootargs but it sets
without "console=", so CONFIG_DEFAULT_CONSOLE for these boards is
designated with "console=" but it is removed. So revert the commit.

References for using ${console} in
   board/samsung/common/bootscripts/autoboot.cmd
   board/samsung/common/bootscripts/bootzimg.cmd

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/include/configs/odroid.h b/include/configs/odroid.h
index ad77242..c3520bb 100644
--- a/include/configs/odroid.h
+++ b/include/configs/odroid.h
@@ -40,7 +40,7 @@
 /* Console configuration */
 
 #define CONFIG_BOOTCOMMAND		"run distro_bootcmd ; run autoboot"
-#define CONFIG_DEFAULT_CONSOLE		"ttySAC1,115200n8"
+#define CONFIG_DEFAULT_CONSOLE		"console=ttySAC1,115200n8\0"
 
 #define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_LOAD_ADDR \
 					- GENERATED_GBL_DATA_SIZE)
@@ -157,7 +157,7 @@
 		"elif test -e mmc 0 uImage; then; " \
 			"run boot_uimg;" \
 		"fi;\0" \
-	"console=" CONFIG_DEFAULT_CONSOLE "\0" \
+	"console=" CONFIG_DEFAULT_CONSOLE \
 	"mmcbootdev=0\0" \
 	"mmcbootpart=1\0" \
 	"mmcrootdev=0\0" \