ASoC: wm_adsp: Allow client to hook into pre_run callback

Some HALO-based codecs need some additional custom setup in the
pre_run stage of cs_dsp. Implement the callback in wm_adsp to call
an optional codec driver callback.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221109165331.29332-11-rf@opensource.cirrus.com


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