arm64: dts: qcom: sm8550-mtp: add WCD9385 audio-codec

Add Qualcomm Aqstic WCD9385 audio codec on two Soundwire interfaces: RX
and TX.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230512160452.206585-2-krzysztof.kozlowski@linaro.org