mediatek: enable bmt on mt7622-rfb1

Signed-off-by: Felix Fietkau <[email protected]>

target/linux/mediatek/patches-5.10/331-mt7622-rfb1-enable-bmt.patch

@@ -0,0 +1,11 @@
+--- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
++++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
+@@ -533,6 +533,8 @@
+ 	pinctrl-0 = <&serial_nand_pins>;
+ 	status = "okay";
+ 
++	mediatek,bmt-v2;
++
+ 	partitions {
+ 		compatible = "fixed-partitions";
+ 		#address-cells = <1>;