ASoC: qcom: sdm845: add remark about unneeded compatibles

If all devices are the same or compatible, there is no single need to
keep growing of_device_id list with new entries.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230118101542.96705-2-krzysztof.kozlowski@linaro.org


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