Merge tag 'efi-2021-01-rc3-3' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Merge tag 'efi-2021-01-rc3-3' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Pull request for UEFI sub-system for efi-2021-01-rc3 (3)

The following errors are corrected:

* Linux crash when accessing UEFI variables at runtime.
* UEFI variable using standalone MM on 32 bit systems
  not working due to missing packing of communication
  structure
* NULL dereference when FAT16 root directory is full
* FAT files with a short file name starting with 0xE5 (0x05 in directory
  entry) where treated as deleted.

The UEFI SetTime() service is enabled on ARM QEMU.