ASoC: dt-bindings: Add the Infineon PEB2466 codec

The Infineon PEB2466 codec is a programmable DSP-based four channels
codec with filters capabilities.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230206144904.91078-2-herve.codina@bootlin.com


Signed-off-by: Mark Brown <broonie@kernel.org>