iommu/tegra: smmu: get HW details from device node

iommu/tegra: smmu: get HW details from device node

The following are also device specific details and the proper
way to get them is from device node
1. swgids that can be enabled
2. number of translation enable
3. number of asid security
4. ptc cache side

Also changed types of the corresponding fields in
smmu_device struct to u32.

Bug 200008320

Change-Id: Ifbb7a1b44e870906b90836340e410583a05e324a
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/436223
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Tested-by: Krishna Reddy <vdumpa@nvidia.com>