ArmVirtPkg: remove DmaLib library class resolution
ArmVirtPkg: remove DmaLib library class resolution

The virt targets never use non-coherent DMA, so there is no point
in having a shared DmaLib library class resolution pointing to
ArmDmaLib. So drop it.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <66d3c5fdaeea7ff1f996ad04f2c45e08ab38e2f5@linaro.org>
Reviewed-by: Laszlo Ersek <7437296077edea1cb64451c122c4dac071f0cfbc@redhat.com>

efidroid/uefi_edk2packages_EFIDroidPkg,efidroid/uefi_edk2packages_EFIDroidPkg