mtd: rawnand: Remove of_get_nand_on_flash_bbt() wrapper

Remove the wrapper as it hides for no reason what we really want: find an
of_property. Removing the wrapper makes the code easier to read.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220106131610.225661-1-tudor.ambarus@microchip.com

drivers/mtd/nand/raw/nand_base.c

@@ -5290,11 +5290,6 @@ static int of_get_nand_bus_width(struct device_node *np)
 	}
 }
 
-static bool of_get_nand_on_flash_bbt(struct device_node *np)
-{
-	return of_property_read_bool(np, "nand-on-flash-bbt");
-}
-
 static int of_get_nand_secure_regions(struct nand_chip *chip)
 {
 	struct device_node *dn = nand_get_flash_node(chip);
@@ -5378,7 +5373,7 @@ static int rawnand_dt_init(struct nand_chip *chip)
 	if (of_property_read_bool(dn, "nand-is-boot-medium"))
 		chip->options |= NAND_IS_BOOT_MEDIUM;
 
-	if (of_get_nand_on_flash_bbt(dn))
+	if (of_property_read_bool(dn, "nand-on-flash-bbt"))
 		chip->bbt_options |= NAND_BBT_USE_FLASH;
 
 	of_get_nand_ecc_user_config(nand);