mtd: rawnand: Fix nand_setup_data_interface() description

This is a copy/paste error and belongs to nand_init_data_interface()
description.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200529111322.7184-11-miquel.raynal@bootlin.com

drivers/mtd/nand/raw/nand_base.c

@@ -941,11 +941,8 @@ static int nand_reset_data_interface(struct nand_chip *chip, int chipnr)
  * @chip: The NAND chip
  * @chipnr: Internal die id
  *
- * Find and configure the best data interface and NAND timings supported by
- * the chip and the driver.
- * First tries to retrieve supported timing modes from ONFI information,
- * and if the NAND chip does not support ONFI, relies on the
- * ->onfi_timing_mode_default specified in the nand_ids table.
+ * Configure what has been reported to be the best data interface and NAND
+ * timings supported by the chip and the driver.
  *
  * Returns 0 for success or negative error code otherwise.
  */