am335x_evm: Enable CONFIG_NAND_OMAP_GPMC_PREFETCH

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 0004750..d5e84ab 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -239,6 +239,7 @@
 #define CONFIG_SYS_NAND_BLOCK_SIZE	(128*1024)
 /* NAND: driver related configs */
 #define CONFIG_NAND_OMAP_GPMC
+#define CONFIG_NAND_OMAP_GPMC_PREFETCH
 #define CONFIG_NAND_OMAP_ELM
 #define CONFIG_SYS_NAND_BAD_BLOCK_POS	NAND_LARGE_BADBLOCK_POS
 #define CONFIG_SYS_NAND_ECCPOS		{ 2, 3, 4, 5, 6, 7, 8, 9, \