mtd: rename CONFIG_MTD_DEVICE -> CONFIG_MTD

Like in Linux, just use CONFIG_MTD to compile the MTD stack.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
diff --git a/configs/chromebit_mickey_defconfig b/configs/chromebit_mickey_defconfig
index 3fa2fcd..a0b1c8d 100644
--- a/configs/chromebit_mickey_defconfig
+++ b/configs/chromebit_mickey_defconfig
@@ -65,6 +65,7 @@
 # CONFIG_SPL_DM_MMC is not set
 CONFIG_MMC_DW=y
 CONFIG_MMC_DW_ROCKCHIP=y
+CONFIG_MTD=y
 CONFIG_SF_DEFAULT_BUS=2
 CONFIG_SF_DEFAULT_SPEED=20000000
 CONFIG_SPI_FLASH_GIGADEVICE=y