mtd: rawnand: macronix: Use match_string() helper to simplify the code

match_string() returns the array index of a matching string.
Use it instead of the open-coded implementation.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

drivers/mtd/nand/raw/nand_macronix.c

@@ -59,7 +59,7 @@ static void macronix_nand_onfi_init(struct nand_chip *chip)
  */
 static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip)
 {
-	unsigned int i;
+	int i;
 	static const char * const broken_get_timings[] = {
 		"MX30LF1G18AC",
 		"MX30LF1G28AC",
@@ -80,12 +80,9 @@ static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip)
 	if (!chip->parameters.supports_set_get_features)
 		return;
 
-	for (i = 0; i < ARRAY_SIZE(broken_get_timings); i++) {
-		if (!strcmp(broken_get_timings[i], chip->parameters.model))
-			break;
-	}
-
-	if (i == ARRAY_SIZE(broken_get_timings))
+	i = match_string(broken_get_timings, ARRAY_SIZE(broken_get_timings),
+			 chip->parameters.model);
+	if (i < 0)
 		return;
 
 	bitmap_clear(chip->parameters.get_feature_list,