ASoC: SOF: ipc4: Add data struct for module notification message from firmware

With the module notification message the information about the notification
is provided via the mailbox with the sof_ipc4_notify_module_data struct.

It contains the module and instance id of the sender of the notification,
the event_id and optionally additional data which is module and event
specific.

At the same time add definitions to identify ALSA kcontrol change
notification.
These notifications use standardized event_id, modules must follow this if
they support such notifications:
upper 16 bit: 0xA15A as a magic identification value
lower 16 bit: param_id of the changed control

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/20231124150853.18648-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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