davinci: move nand driver to drivers/mtd/nand

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/davinci_sffsdr.h b/include/configs/davinci_sffsdr.h
index 875bab6..9354c2f 100644
--- a/include/configs/davinci_sffsdr.h
+++ b/include/configs/davinci_sffsdr.h
@@ -77,6 +77,7 @@
 /* Flash & Environment */
 #undef CONFIG_ENV_IS_IN_FLASH
 #define CONFIG_SYS_NO_FLASH
+#define CONFIG_NAND_DAVINCI
 #define CONFIG_ENV_IS_IN_NAND		/* U-Boot env in NAND Flash  */
 #define CONFIG_ENV_SECT_SIZE	2048	/* Env sector Size */
 #define CONFIG_ENV_SIZE		SZ_128K