UEFI Sct validates Dma mapping. For CoherentDmaLib it always failed because there were no required checks present in DmaMap. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>