video: tegra: host: Use sg_table for DMA addresses

Use scatter-gather list for storing DMA addresses. This will allow
us to use DMA addresses from non-nvmap memory managers.

Change-Id: Id4a56ef5772a0d08b964336c51b06aa2b8432fe3
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/135086
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
19 files changed