Merge tag 'efi-2026-01-rc3' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2026-01-rc3

CI:

* https://source.denx.de/u-boot/custodians/u-boot-efi/-/pipelines/28355

Documentation:

* Correct the linux/arm64 platform string for Docker builds
* Complete pytest dependencies list with missing packages

UEFI:

* Use Sphinx style comments in efi_selftest_console.c
* Don't include asm/global_data.h in lib/efi_client/efi_app.c twice
* efi_client: correct memset() return value
* Assure fitImage from capsule is used from 8-byte aligned address
* Fix warning when building efi_selftest_snp with clang