orangepi5: u-boot: bump from -rcX to 2026.04 (final)

Author: rpardini

config/boards/orangepi5.conf

@@ -27,7 +27,7 @@ function post_family_config__orangepi5_use_mainline_uboot() {
 	declare -g BOOTCONFIG="orangepi-5-rk3588s_defconfig"
 	declare -g BOOTDELAY=1
 	declare -g BOOTSOURCE="https://github.com/u-boot/u-boot.git"
-	declare -g BOOTBRANCH="tag:v2026.04-rc3"
+	declare -g BOOTBRANCH="tag:v2026.04"
 	declare -g BOOTPATCHDIR="v2026.04"
 	declare -g BOOTDIR="u-boot-${BOARD}"
 	declare -g UBOOT_TARGET_MAP="BL31=${RKBIN_DIR}/${BL31_BLOB} ROCKCHIP_TPL=${RKBIN_DIR}/${DDR_BLOB} $BOOTCONFIG_SATA;;u-boot-rockchip-spi-sata.bin