[Buildroot] [git commit branch/2025.08.x] boot/uboot: use BR2_TARGET_XILINX_FIRMWARE_ARCH_SUPPORTS

[Titouan Christophe]

commit: https://git.buildroot.net/buildroot/commit/?id=713f7c47f8b893d3779543cba44d702dcd6b23ba
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2025.08.x

Migrate the BR2_TARGET_UBOOT_ZYNQMP dependency to the new
BR2_TARGET_XILINX_FIRMWARE_ARCH_SUPPORTS symbol. Also, add a cpu dependency
on BR2_cortex_a53 since the zynqmp platform is based on the ARM Cortex-A53
and the BR2_TARGET_UBOOT_ZYNQMP should not be available for other CPUs with
aarch64 architecture.

Signed-off-by: Neal Frager <neal.frager at amd.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli at bootlin.com>
Signed-off-by: Julien Olivain <ju.o at free.fr>
(cherry picked from commit 5986c51219f9bc8a05d5903477a5a0292a869b94)
Signed-off-by: Titouan Christophe <titouan.christophe at mind.be>
---
 boot/uboot/Config.in | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
index 52e6050c81..0b27874e24 100644
--- a/boot/uboot/Config.in
+++ b/boot/uboot/Config.in
@@ -575,7 +575,8 @@ config BR2_TARGET_UBOOT_INITIAL_ENV
 
 config BR2_TARGET_UBOOT_ZYNQMP
 	bool "Boot on the Xilinx ZynqMP SoCs"
-	depends on BR2_aarch64
+	depends on BR2_TARGET_XILINX_FIRMWARE_ARCH_SUPPORTS
+	depends on BR2_cortex_a53
 	help
 	  Enable options specific to the Xilinx ZynqMP family of SoCs.