devkit8000: Add malloc space

With malloc support being a new requirement for all ARM SPL
implementations, define a small area for use on devkit8000.

Cc: Frederik Kriewitz <frederik@kriewitz.eu>
Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

include/configs/devkit8000.h

@@ -358,4 +358,7 @@
 #define CONFIG_SYS_NAND_U_BOOT_OFFS	0x80000
 #define CONFIG_SYS_NAND_U_BOOT_SIZE	0x200000
 
+#define CONFIG_SYS_SPL_MALLOC_START	0x80108000
+#define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
+
 #endif /* __CONFIG_H */