iommu/arm-smmu-v3: Replace s1_cfg with cdtab_cfg

Remove struct arm_smmu_s1_cfg. This is really just a CD table with a
bit of extra information. Move other attributes of the CD table that
were held there into the existing CD table structure, struct
arm_smmu_ctx_desc_cfg, and replace all usages of arm_smmu_s1_cfg with
arm_smmu_ctx_desc_cfg.

For clarity, use the name "cd_table" for the variables pointing to
arm_smmu_ctx_desc_cfg in the new code instead of cdcfg. A later patch
will make this fully consistent.

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Michael Shavit <mshavit@google.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Link: https://lore.kernel.org/r/20230915211705.v8.2.I1ef1ed19d7786c8176a0d05820c869e650c8d68f@changeid


Signed-off-by: Will Deacon <will@kernel.org>