linux-phytec-fsl

mtd: nand_bbt: Move BBT block selection logic out of write_bbt()

This clarifies the write_bbt() function by removing the write label
and simplifying the error/exit path.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Kyle Roeschley <kyle.roeschley@ni.com>