boot/xilinx-prebuilt: add support for xilinx_v2025.1

This patch adds support for version xilinx_v2025.1 without changing the
default version.  This way, the zynqmp and versal defconfigs can bump
individually from xilinx_v2024.2 to xilinx_v2025.1.

Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

boot/xilinx-prebuilt/xilinx-prebuilt.hash

@@ -1,5 +1,6 @@
 # Locally calculated
 sha256  86ee9629366aa8c0d70b87202152a793804ed4090e3a6fdac4eaf855bcc4d458  xilinx-prebuilt-xilinx_v2024.2_update1.tar.gz
+sha256  b9e2572885ad12243e10d48d9fccb24771a528b9f27aae1b29b45f0806ce9f1f  xilinx-prebuilt-xilinx_v2025.1.tar.gz
 
 # Locally calculated
 sha256  7b2074b607264a07347e1a7ef0323229585942793469f34b2cf9628f7623e05f  LICENSE