iommu/tegra: Use tegra_dev_iommu_get_stream_id() in the remaining places

iommu/tegra: Use tegra_dev_iommu_get_stream_id() in the remaining places

This API was defined to formalize the access to internal iommu details on
some Tegra SOCs, but a few callers got missed. Add them.

The helper already masks by 0xFFFF so remove this code from the callers.

Suggested-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/7-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>