BACKPORT: FROMLIST: iommu/arm-smmu-v3-kvm: Add map, unmap and iova_to_phys operations

Add map, unmap and iova_to_phys, which are forwarded to the
hypervisor.

Link: https://lore.kernel.org/all/20241212180423.1578358-51-smostafa@google.com/



Bug: 357781595
Bug: 384432312

Change-Id: Ia632b8a6c6b521982493572dbf594e4a379ed87e
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>