iommu/arm-smmu-v3: Directly encode simple commands

iommu/arm-smmu-v3: Directly encode simple commands

Add make functions to build commands for

 CMDQ_OP_TLBI_EL2_ALL
 CMDQ_OP_TLBI_NSNH_ALL
 CMDQ_OP_CFGI_ALL
 CMDQ_OP_PREFETCH_CFG
 CMDQ_OP_CFGI_STE
 CMDQ_OP_CFGI_CD
 CMDQ_OP_RESUME
 CMDQ_OP_PRI_RESP

Convert all of these call sites to use the make function instead of
going through arm_smmu_cmdq_build_cmd(). Use a #define so the general
pattern is always:

   arm_smmu_cmdq_issue_cmd(smmu, arm_smmu_make_cmd_XX(..));

Add arm_smmu_cmdq_batch_add_cmd() which takes struct arm_smmu_cmd
directly to match the new flow.

Reviewed-by: Pranjal Shrivastava <praan@google.com>
Reviewed-by: Mostafa Saleh <smostafa@google.com>
Tested-by: Pranjal Shrivastava <praan@google.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Samiullah Khawaja <skhawaja@google.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Will Deacon <will@kernel.org>