Merge tag 'u-boot-imx-next-20240925' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx into next

CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/22406

- i.MX93 FEC fixes.
- Always name the generated fitImage u-boot.itb to keep compatibility
  with pr-buildman behavior.
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