ASoC: qcom: apq8016_sbc: Allow routing audio through QDSP6

The apq8016-sbc-sndcard is designed to be used with the LPASS drivers
(bypassing the combined audio/modem DSP in MSM8916/APQ8016).
Make it possible to use QDSP6 audio instead for the msm8916-qdsp6-sndcard.

This only requires adding some additional hooks that set up the DPCM
backends correctly. Similar code is already used in drivers for newer
SoCs such as apq8096.c, sdm845.c and sm8250.c.

A slightly different initialization sequence is used for the apq8016-sbc
and msm8916-qdsp6 sound card by defining the apq8016_sbc_add_ops()
function as device match data.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211202145505.58852-6-stephan@gerhold.net
Signed-off-by: Mark Brown <broonie@kernel.org>