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/Kconfig b/arch/arm/Kconfig
index f96841c..f9dab07 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -974,7 +974,7 @@
 	select SPL_USE_TINY_PRINTF
 	imply CMD_DM
 	imply CMD_GPT
-	imply CMD_UBI if NAND
+	imply CMD_UBI if MTD_RAW_NAND
 	imply DISTRO_DEFAULTS
 	imply FAT_WRITE
 	imply FIT
@@ -1004,7 +1004,7 @@
 	select CPU_V7A
 	select SYS_FSL_ERRATUM_ESDHC111
 	imply CMD_MTDPARTS
-	imply NAND
+	imply MTD_RAW_NAND
 
 config ARCH_ZYNQ
 	bool "Xilinx Zynq based platform"