[][mtd: nand: spi: Fix build error]

[Description]
Fix build error

[Release-log]
N/A

Change-Id: I7b64faade226ff0a3d94cc9821d61a927b135205
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5509059
diff --git a/target/linux/mediatek/patches-5.4/0672-add-F50L1G41LB-and-GD5F1GQ5UExxG-snand-support.patch b/target/linux/mediatek/patches-5.4/0672-add-F50L1G41LB-and-GD5F1GQ5UExxG-snand-support.patch
index 8bfd6ae..63eee5d 100644
--- a/target/linux/mediatek/patches-5.4/0672-add-F50L1G41LB-and-GD5F1GQ5UExxG-snand-support.patch
+++ b/target/linux/mediatek/patches-5.4/0672-add-F50L1G41LB-and-GD5F1GQ5UExxG-snand-support.patch
@@ -48,7 +48,7 @@
 +
 +static const struct mtd_ooblayout_ops esmt_1_ooblayout = {
 +	.ecc = esmt_1_ooblayout_ecc,
-+	.rfree = esmt_1_ooblayout_free,
++	.free = esmt_1_ooblayout_free,
 +};
 +
  static const struct spinand_info gigadevice_spinand_table[] = {