arm: socfpga: arria5_socdk: Enable ubiload console command

Enabling ubiload command to load kernel image and
device tree from mtd part labeled "UBI". ubiload
command will search the file from directory /boot.

Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>

include/configs/socfpga_arria5_socdk.h

@@ -74,7 +74,10 @@
 	"qspirootfstype=jffs2\0" \
 	"qspiboot=setenv bootargs " CONFIG_BOOTARGS \
 		" root=${qspiroot} rw rootfstype=${qspirootfstype};"\
-		"bootm ${loadaddr} - ${fdt_addr}\0"
+		"bootm ${loadaddr} - ${fdt_addr}\0" \
+	"ubiload=ubi part UBI && ubifsmount ubi0 && " \
+		"ubifsload ${loadaddr} /boot/${bootimage} && " \
+		"ubifsload ${fdt_addr} /boot/${fdtimage}\0"
 
 /* The rest of the configuration is shared */
 #include <configs/socfpga_common.h>