Merge tag 'xilinx-for-v2025.07-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

AMD/Xilinx/FPGA changes for v2025.07-rc1

AMD/Xilinx:
- Synchronize enums around tcm_mode
- Access bootmode registers via firmware interface
- Setup default values for DEBUG_UART
- Fix dfu alt buffer clearing
- Convert loadpdi command to fpga
- Fix board detection code
- Minor defconfig updates

Versal:
- Wire multi_boot register

Versal Gen 2:
- Enable missing drivers
- Wire i2c FRU decoding at start
- Wire saving variables to different locations
- Disable default DEBUG_UART
- Wire USB/UFS boot and fix access via firmware interface
- Minor fixes

ZynqMP/Kria:
- Enable mkfwumdata
- Topic board update
- Enhance binman configurations
- Kria usb update

BuR:
- Add multiple Zynq based boards

cadence_ospi:
- Enable device reset

fpga:
- Add support for loading bitstream for Altera SoCs