[U-Boot] [U-Boot, v2, 2/3] efi: Add EFI_MEMORY_{NV, MORE_RELIABLE, RO} attributes

[Alexander Graf]

> With this update, the memory attributes are in sync with Linux
> kernel v4.18-rc4. They also match page 190 of UEFI 2.7 spec [1].
> 
> [1] http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
> 
> Suggested-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> Signed-off-by: Eugeniu Rosca <erosca at de.adit-jv.com>
> Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

Thanks, applied to efi-2018.09

Alex