cmd: mtd: simplify mtd_show_device()

CONFIG_DM=y is always true.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Michael Trimarchi <michael@amarulasolutions.com>
1 file changed