arm64: dts: qcom: msm8996: move WCD9335 audio codec to boards

The WCD9335 audio codec on Slimbus is a property of a board, not SoC,
thus it should not be present in MSM8996 DTSI.  Keep it in specific
boards, so it won't appear incomplete in the boards not having it.

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/20230220094339.47370-1-krzysztof.kozlowski@linaro.org