mtd: nand: use NAND_BBT_SCAN_MAXBLOCKS

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: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/nand/nand_bbt.c

@@ -62,6 +62,7 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/mtd/mtd.h>
+#include <linux/mtd/bbm.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nand_ecc.h>
 #include <linux/bitops.h>
@@ -1258,7 +1259,7 @@ static struct nand_bbt_descr bbt_main_descr = {
 	.offs =	8,
 	.len = 4,
 	.veroffs = 12,
-	.maxblocks = 4,
+	.maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
 	.pattern = bbt_pattern
 };
 
@@ -1268,7 +1269,7 @@ static struct nand_bbt_descr bbt_mirror_descr = {
 	.offs =	8,
 	.len = 4,
 	.veroffs = 12,
-	.maxblocks = 4,
+	.maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
 	.pattern = mirror_pattern
 };
 
@@ -1278,7 +1279,7 @@ static struct nand_bbt_descr bbt_main_no_oob_descr = {
 		| NAND_BBT_NO_OOB,
 	.len = 4,
 	.veroffs = 4,
-	.maxblocks = 4,
+	.maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
 	.pattern = bbt_pattern
 };
 
@@ -1288,7 +1289,7 @@ static struct nand_bbt_descr bbt_mirror_no_oob_descr = {
 		| NAND_BBT_NO_OOB,
 	.len = 4,
 	.veroffs = 4,
-	.maxblocks = 4,
+	.maxblocks = NAND_BBT_SCAN_MAXBLOCKS,
 	.pattern = mirror_pattern
 };