arm: exynos: Remove duplicated "boardname" env setting

Various places in the code set "boardname" env property.  It was used
for booting from ITB images and choosing proper DTB file name.  Instead
of duplicating it, use existing U-Boot wide - "board_name".

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/include/configs/odroid_xu3.h b/include/configs/odroid_xu3.h
index 5e765a2..af6004e 100644
--- a/include/configs/odroid_xu3.h
+++ b/include/configs/odroid_xu3.h
@@ -84,10 +84,14 @@
 #define CONFIG_SET_DFU_ALT_INFO
 #define CONFIG_SET_DFU_ALT_BUF_LEN	(SZ_1K)
 
-/* Set soc_rev, soc_id, board_rev, boardname, fdtfile */
+/* Set soc_rev, soc_id, board_rev, board_name, fdtfile */
 #define CONFIG_ODROID_REV_AIN		9
 #define CONFIG_REVISION_TAG
 
+/*
+ * Need to override existing one (smdk5420) with odroid so set_board_info will
+ * use proper prefix when creating full board_name (SYS_BOARD + type)
+ */
 #undef CONFIG_SYS_BOARD
 #define CONFIG_SYS_BOARD		"odroid"
 
@@ -101,7 +105,7 @@
 	"rootfstype=ext4\0" \
 	"console=" CONFIG_DEFAULT_CONSOLE \
 	"fdtfile=exynos5422-odroidxu3.dtb\0" \
-	"boardname=odroidxu3\0" \
+	"board_name=odroidxu3\0" \
 	"mmcbootdev=0\0" \
 	"mmcrootdev=0\0" \
 	"mmcbootpart=1\0" \