[][OpenWrt Dev][Enable new NMBM feature for mt7986]

[Description]
Add NMBM usability checking option on erased block for mt7986 dts

[Release-log]
N/A

Change-Id: Ic1ee2730b20ae36545ad84fd53a97a79b76c22fe
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4649346
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dtsi
index f7fba4d..6194b2e 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dtsi
@@ -20,6 +20,7 @@
 
 		lower-mtd-device = <&snand>;
 		forced-create;
+		empty-page-ecc-protected;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dtsi
index f9f2cea..33afd5c 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dtsi
@@ -21,6 +21,7 @@
 
 		lower-mtd-device = <&snand>;
 		forced-create;
+		empty-page-ecc-protected;
 
 		partitions {
 			compatible = "fixed-partitions";