qcacmn: Add support for iommu domain in place of mapping

Add support for iommu domain instead of mapping in
struct __qdf_device to support use of API
pld_smmu_get_domain in place of pld_smmu_get_mapping,
which is to be deprecated.

Change-Id: I89e9eea8ec7095a79493c0adca15c8034c21f79a
CRs-Fixed: 2464861
2 files changed