mediatek: mt7622: set DEVICE_DTC_ADDR for BPi-R64

Relocating the device tree is required for being apply to apply
device tree overylay at boot.

Fixes: 34bb3309 ("mediatek: use updated device tree overlay mechanism for BPi-R64")
Signed-off-by: NDaniel Golle <daniel@makrotopia.org>

target/linux/mediatek/image/mt7622.mk

@@ -71,6 +71,7 @@ define Device/bananapi_bpi-r64
   DEVICE_DTS_OVERLAY := mt7622-bananapi-bpi-r64-pcie1 mt7622-bananapi-bpi-r64-sata
   DEVICE_PACKAGES := kmod-ata-ahci-mtk kmod-btmtkuart kmod-usb3 e2fsprogs mkf2fs f2fsck
   DEVICE_DTC_FLAGS := --pad 4096
+  DEVICE_DTS_LOADADDR := 0x43f00000
   ARTIFACTS := emmc-preloader.bin emmc-bl31-uboot.fip sdcard.img.gz snand-preloader.bin snand-bl31-uboot.fip
   IMAGES := sysupgrade.itb
   KERNEL_INITRAMFS_SUFFIX := -recovery.itb