Merge tag 'efi-2022-07-rc1-3' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2022-07-rc1-3

Documentation:

* Document image size parameter of bootefi command

UEFI:

* avoid building partition support in SPL/TPL where not required
* improve integration of EFI subsystem and driver model
* restore ability to boot arbitrary blob