mtd: nand: pxa3xx: use nand_set_controller_data

In commit 17cb4b8f ("mtd: nand: Add+use mtd_to/from_nand and
nand_get/set_controller_data") the assignment of mtd->priv was removed
but was not replaced. This adds the required nand_set_controller_data()
call.
Signed-off-by: NChris Packham <judge.packham@gmail.com>

drivers/mtd/nand/pxa3xx_nand.c

@@ -1496,6 +1496,7 @@ static int alloc_nand_resource(struct pxa3xx_nand_info *info)
 		host->read_id_bytes = 4;
 		mtd->owner = THIS_MODULE;
 
+		nand_set_controller_data(chip, host);
 		chip->ecc.read_page	= pxa3xx_nand_read_page_hwecc;
 		chip->ecc.write_page	= pxa3xx_nand_write_page_hwecc;
 		chip->controller        = &info->controller;