AHUB and its child nodes ports are part of platform DTS and with new
platform support these entries need to be defined again.
As they are common across the platforms, moving them to SoC
DTSI to avoid code duplicacy.

AHUB HW accelerators are used for audio processing and typically all of
these are made available. Platforms can enable all of these just by
enabling the AHUB parent device. However IO interfaces (which are also
children of AHUB) are selectively enabled based on what the platform
actually exposes for interaction with external world.
Signed-off-by: sheetal <sheetal@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>