dmaengine: tegra: don't open code of_device_get_match_data()

Use of_device_get_match_data() for getting matched data
instead of implementing this locally.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>