arm64: dts: qcom: sm8450-hdk: add sound support

Add sound support to SM8450 HDK board.  Tested setup so far is only two
speakers (working) and head-phones (only one channel working).

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Co-developed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221202152054.357316-4-krzysztof.kozlowski@linaro.org