bcm27xx-eeprom: update to v2025-05-08-2712

bcm27xx-eeprom: update to v2025-05-08-2712

bcm2711:
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2711/release-notes.md#2025-05-08-implement-tcp-window-for-net-boot-latest

bcm2712:
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-02-12-fixup-change-to-disable-37v-pmic-output-on-cm5-no-wifi-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-03-03-fix-bootloader-pull-configuration-on-2712d0-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-03-10-add-boot_partition-filter-plus-sdram-init-fixes-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-03-19-log-the-fan-speed-at-boot-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-03-27-os_check-cm5-check-for-cm5-specific-dtbs-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-04-07-arm_dt-revert-to-using-the-max-fan-speed-latest
https://github.com/raspberrypi/rpi-eeprom/blob/v2025.05.08-2712/firmware-2712/release-notes.md#2025-05-08-implement-tcp-window-for-net-boot-latest

Signed-off-by: Álvaro Fernández Rojas <redacted>