radxa-cubie-a5e: maint and fixes (#9152)

* radxa-.cubie-a5e: bump atf branch to v4 and fix fdt file name

* bump u-boot to rc5
because why not?

* potential fix for corrupted images

Author: EvilOlaf

config/boards/radxa-cubie-a5e.csc

@@ -7,7 +7,7 @@ BOOTCONFIG="radxa-cubie-a5e_defconfig"
 OVERLAY_PREFIX="sun55i-a527"
 #BOOT_LOGO="desktop"
 KERNEL_TARGET="edge"
-BOOT_FDT_FILE="sun55i-a527-radxa-a5e.dtb"
+BOOT_FDT_FILE="sun55i-a527-cubie-a5e.dtb"
 IMAGE_PARTITION_TABLE="gpt"
 #IMAGE_PARTITION_TABLE="msdos"
 BOOTFS_TYPE="fat"
@@ -58,4 +58,3 @@ function post_family_tweaks__enable_aic8800_bluetooth_service() {
 		display_alert "$BOARD" "aic-bluetooth.service not found in image; skipping enable" "warn"
 	fi
 }
-

config/sources/families/sun55iw3.conf

@@ -10,11 +10,10 @@ source "${BASH_SOURCE%/*}/include/sunxi64_common.inc"
 
 declare -g ATFSOURCE='https://github.com/jernejsk/arm-trusted-firmware'
 declare -g ATF_TARGET_MAP="PLAT=sun55i_a523 DEBUG=1 bl31;;build/sun55i_a523/debug/bl31.bin"
-declare -g ATFBRANCH="branch:a523"
+declare -g ATFBRANCH="branch:a523-v4"
 declare -g BOOTPATCHDIR="sunxi-dev-u-boot-a523"
-declare -g BOOTBRANCH="tag:v2026.01-rc4"
+declare -g BOOTBRANCH="tag:v2026.01-rc5"
 
 write_uboot_platform() {
-	dd if=/dev/zero of=$2 bs=512 count=1023 seek=1 status=noxfer > /dev/null 2>&1
 	dd if=$1/u-boot-sunxi-with-spl.bin of=$2 bs=512 seek=256 status=noxfer > /dev/null 2>&1
 }