arm64: tegra: Enable ACONNECT, ADMA and AGIC

Enable ACONNECT, ADMA and AGIC devices on Jetson TX2 and Jetson AGX
Xavier.

Verified driver probe path and devices get registered fine.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>