BACKPORT: FROMLIST: iommu/arm-smmu-v3-kvm: Allocate structures and reset device

Allocate the structures that will be shared between hypervisor and SMMU:
command queue and stream table. Install them in the MMIO registers,
along with some configuration bits. After hyp initialization, the host
won't have access to those pages anymore.

Link: https://lore.kernel.org/all/20241212180423.1578358-46-smostafa@google.com/



Bug: 357781595
Bug: 384432312

Change-Id: I6867b011d998400cdcb1c08c62db82e8f7b38dec
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Mostafa Saleh <smostafa@google.com>