ASoC: SOF: ipc4: Handle ALSA kcontrol change notification from firmware

ASoC: SOF: ipc4: Handle ALSA kcontrol change notification from firmware

The control change notification is sent as module notification with a
standardized event_id (higher 16 bit is 0xA15A).
Add generic code to handle the module notification and invoke the control
update callback if the notification is an ALSA kcontrol change message.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231124150853.18648-5-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>