Merge tag 'efi-2021-01-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Pull request for UEFI sub-system for efi-2021-01-rc3

A part of the EFI_TCG2_PROTOCOL is implemented.
A unit test is supplied.

The following bugs are fixed:

* incorrect buffer size in efi_file_setinfo() leading to creash in SCT
* a crash in UEFI selftest on the sandbox due to removed drivers
* missing newlines in log message for the UEFI RNG driver