Merge tag 'efi-2025-10-rc4' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2025-10-rc4.

CI:

* https://source.denx.de/u-boot/custodians/u-boot-efi/-/pipelines/27527

Documentation:

* Rephrasing and text corrections for buildman

UEFI:

* Serial: Use correct EFI status type
* Let EFI_HTTP_BOOT select CMD_DHCP
* Let EFI_VARIABLES_PRESEED depend on !COMPILE_TEST