Merge tag 'efi-next' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi into...

Pull request for UEFI sub-system for next

Bug fixes

* avoid corruption of FAT file system when using long names
* correct values for RuntimeServicesSupport concerning UEFI capsule update
* link partition to block device via EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER

New feature

* support EFI_LOAD_FILE_PROTOCOL in LoadImage() boot service