trats2: config: fix: Set default console to ttySAC2

During providing device tree support for Exynos4 based boards,
a tiny mistake has creeped in the 1ecab0f commit.

This commit restores proper setting of default console for the
trats2 board.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

include/configs/trats2.h

@@ -52,7 +52,7 @@
 
 #define CONFIG_BOOTARGS			"Please use defined boot"
 #define CONFIG_BOOTCOMMAND		"run mmcboot"
-#define CONFIG_DEFAULT_CONSOLE		"console=ttySAC1,115200n8\0"
+#define CONFIG_DEFAULT_CONSOLE		"console=ttySAC2,115200n8\0"
 
 #define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_LOAD_ADDR \
 					- GENERATED_GBL_DATA_SIZE)