rockchip: block: simplify rkmtd driver

By using blk_create_devicef() instead of blk_create_devicef() the driver
can be simplified and brought into line with other block device drivers.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Tested-by: Johan Jonker <jbx6244@gmail.com>
1 file changed