mtd: rename CONFIG_NAND -> CONFIG_MTD_RAW_NAND

Add more clarity by changing the Kconfig entry name.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
[trini: Re-run migration, update a few more cases]
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
diff --git a/include/environment/ti/dfu.h b/include/environment/ti/dfu.h
index 9f7ea03..720c345 100644
--- a/include/environment/ti/dfu.h
+++ b/include/environment/ti/dfu.h
@@ -39,7 +39,7 @@
 	"u-boot.img fat 1 1;" \
 	"uEnv.txt fat 1 1\0"
 
-#ifdef CONFIG_NAND
+#ifdef CONFIG_MTD_RAW_NAND
 #define DFU_ALT_INFO_NAND \
 	"dfu_alt_info_nand=" \
 	"SPL part 0 1;" \
diff --git a/include/environment/ti/nand.h b/include/environment/ti/nand.h
index f838cb3..f2482e8 100644
--- a/include/environment/ti/nand.h
+++ b/include/environment/ti/nand.h
@@ -5,7 +5,7 @@
  * Environment variable definitions for NAND on TI boards.
  */
 
-#ifdef CONFIG_NAND
+#ifdef CONFIG_MTD_RAW_NAND
 #define NANDARGS \
 	"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
 	"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \