ASoC: dt-bindings: Add SC7280 lpass cpu bindings

Add bindings for sc7280 lpass cpu driver which supports
audio over i2s based speaker, soundwire based headset, msm dmics
and HDMI Port.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1645716828-15305-9-git-send-email-quic_srivasam@quicinc.com


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