mtd: nand: orion: set ECC algorithm explicitly

This is part of process deprecating NAND_ECC_SOFT_BCH (and switching to
enum nand_ecc_algo).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index d4614bf..40a7c4a 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -130,6 +130,7 @@
 	nc->cmd_ctrl = orion_nand_cmd_ctrl;
 	nc->read_buf = orion_nand_read_buf;
 	nc->ecc.mode = NAND_ECC_SOFT;
+	nc->ecc.algo = NAND_ECC_HAMMING;
 
 	if (board->chip_delay)
 		nc->chip_delay = board->chip_delay;