ASoC: SOF: topology: expose some get_token ops

These will be used later on by IPC-specific code.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220307181111.49392-10-ranjani.sridharan@linux.intel.com


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