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/common/Kconfig b/common/Kconfig
index d9ecf79..a7c5ba2 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -303,7 +303,7 @@
 config NAND_BOOT
 	bool "Support for booting from NAND flash"
 	default n
-	imply NAND
+	imply MTD_RAW_NAND
 	help
 	  Enabling this will make a U-Boot binary that is capable of being
 	  booted via NAND flash. This is not a must, some SoCs need this,
@@ -312,7 +312,7 @@
 config ONENAND_BOOT
 	bool "Support for booting from ONENAND"
 	default n
-	imply NAND
+	imply MTD_RAW_NAND
 	help
 	  Enabling this will make a U-Boot binary that is capable of being
 	  booted via ONENAND. This is not a must, some SoCs need this,