ASoC: codecs: wcd937x-sdw: add SoundWire driver

This patch adds support to SoundWire devices on WCD9370/WCD9375 Codec.

The WCD9370/WCD9375 Soundwire devices will be used by the
main WCD9370/WCD9375 Audio Codec driver to access registers
and configure Soundwire RX and TX ports.

Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Co-developed-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <quic_mohs@quicinc.com>
Link: https://lore.kernel.org/r/20240524035535.3119208-3-quic_mohs@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>