ASoC: SOF: topology: Make widget binding IPC agnostic

Make widget binding in the topology parser IPC agnostic by introducing a
new op, bind_event, in struct ipc_tplg_widget_ops. Also set the op
for all widget types in the IPC3 topology ops.

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/20220314200520.1233427-19-ranjani.sridharan@linux.intel.com


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