mtd: nand: omap2: 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/omap2.c b/drivers/mtd/nand/omap2.c
index 55916786d..16da65b 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -2012,6 +2012,7 @@
 	 */
 	if (info->ecc_opt == OMAP_ECC_HAM1_CODE_SW) {
 		nand_chip->ecc.mode = NAND_ECC_SOFT;
+		nand_chip->ecc.algo = NAND_ECC_HAMMING;
 		goto scan_tail;
 	}