arm64: tegra: Audio codec support on Jetson AGX Orin

Jetson AGX Orin has onboard RT5640 audio codec. This patch adds the
codec device node and the bindings to I2S1 interface.

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