[U-Boot] [U-Boot, v5, 07/13] efi: Add a comment about duplicated ELF constants

[Alexander Graf]

> These constants are defined in arch-specific code but redefined here. Add
> a TODO to clean this up.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

Thanks, applied to efi-next

Alex