Merge tag 'efi-2023-07-rc3' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request efi-2023-07-rc3

Documentation:

* update the description of signature algorithms

UEFI:

* fix unaligned access to GUID in HII database protocol
* fix launching EFI binaries loaded via semihosting
* fix filling of file path in loaded image protocol for non-block devices