mtd: atmel_nand: fix pmecc selction for ecc requirement typo

Atmel PMECC support 2, 4, 8, 12, 24 bit error correction.
So if the ecc requirement in ONFI is <= 2, 4, 8, 12, 24.
We will use 2, 4, 8, 12, 24.

This patch fix the typo. Use '<=' replace '<'.

Reported-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/nand/atmel_nand.c

@@ -959,11 +959,11 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host,
 			host->pmecc_corr_cap = 2;
 		else if (*cap <= 4)
 			host->pmecc_corr_cap = 4;
-		else if (*cap < 8)
+		else if (*cap <= 8)
 			host->pmecc_corr_cap = 8;
-		else if (*cap < 12)
+		else if (*cap <= 12)
 			host->pmecc_corr_cap = 12;
-		else if (*cap < 24)
+		else if (*cap <= 24)
 			host->pmecc_corr_cap = 24;
 		else
 			return -EINVAL;