ASoC: qcom: dt-bindings: Add bindings for power domains in lpass digital codecs

Include power domain dt-bindings for lpass digital codecs RX, TX and
VA macros, which are required for ADSP bypass architecture.

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>
Link: https://lore.kernel.org/r/1645898959-11231-3-git-send-email-quic_srivasam@quicinc.com


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