In nand_bbt.c, a hardcoded value was used instead of the define meant
for that, so we use the define.

There's no functional change.
Signed-off-by: NRichard Genoud <richard.genoud@gmail.com>
Acked-by: NBrian Norris <computersforpeace@gmail.com>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>