Merge tag 'efi-2026-04-rc4' of https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request efi-2026-04-rc4
CI: https://source.denx.de/u-boot/custodians/u-boot-efi/-/pipelines/29389
UEFI:
* Correct LoadImage() return code for invalid parameters
and provide a test for it.
* Correct misspells in the test code.