[U-Boot] [U-Boot,v3,05/21] efi_loader: add device-path utils

[Alexander Graf]

> Helpers to construct device-paths from devices, partitions, files, and
> for parsing and manipulating device-paths.
> 
> For non-legacy devices, this will use u-boot's device-model to construct
> device-paths which include bus hierarchy to construct device-paths.  For
> legacy devices we still fake it, but slightly more convincingly.
> 
> Signed-off-by: Rob Clark <robdclark at gmail.com>

Thanks, applied to efi-next

Alex