The dummy controller is kept around to support old drivers. Let's
patch this one and declare our own nand_controller instance.
Signed-off-by: NBoris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NMiquel Raynal <miquel.raynal@bootlin.com>