ASoC: SOF: ipc4-pcm: Expose sof_ipc4_set_pipeline_state()

Expose the sof_ipc4_set_pipeline_state() function as it will be used in
the IPC4-specific BE DAI driver ops.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220609032643.916882-16-ranjani.sridharan@linux.intel.com


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