[U-Boot] [U-Boot, v3, 6/7] efi_loader: Keep memory mapping sorted when splitting an entry

[Alexander Graf]

> The code assumes sorted mappings in descending address order. When
> splitting a mapping, insert the new part next to the current mapping.
> 
> Signed-off-by: Stefan Brüns <stefan.bruens at rwth-aachen.de>
> Reviewed-by: Alexander Graf <agraf at suse.de>

Thanks, applied to