Add audio support for the NVIDIA IGX Orin development kit having P3701
module with P3740 carrier board.

Move the common device-tree nodes to a new file tegra234-p3701.dtsi and
use this for Jetson AGX Orin and NVIDIA IGX Orin platforms
Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
[treding@nvidia.com: properly sort nodes]
Signed-off-by: Thierry Reding <treding@nvidia.com>