arm: socfpga: spl: Add CONFIG_SPL_MAX_SIZE to be 64KB

The Cyclone5 SoCFPGA has 64KB of OCRAM for SPL use.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index 1ecd56f..9b29c60 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -292,6 +292,7 @@
 #define CONFIG_SPL_TEXT_BASE		CONFIG_SYS_INIT_RAM_ADDR
 #define CONFIG_SYS_SPL_MALLOC_START	CONFIG_SYS_INIT_SP_ADDR
 #define CONFIG_SYS_SPL_MALLOC_SIZE	(5 * 1024)
+#define CONFIG_SPL_MAX_SIZE		(64 * 1024)
 
 #define CHUNKSZ_CRC32			(1 * 1024)	/* FIXME: ewww */
 #define CONFIG_CRC32_VERIFY