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/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 751c0b5..fee6d56 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -80,7 +80,7 @@
 
 config CMD_NANDBCB
 	bool "i.MX6 NAND Boot Control Block(BCB) command"
-	depends on NAND && CMD_MTDPARTS
+	depends on MTD_RAW_NAND && CMD_MTDPARTS
 	select BCH if MX6UL || MX6ULL
 	default y if (ARCH_MX6 && NAND_MXS) || (ARCH_MX7 && NAND_MXS)
 	help