ASoC: SOF: Intel: mtl: move SoundWire interrupt enabling to callback

ASoC: SOF: Intel: mtl: move SoundWire interrupt enabling to callback

There's no real rationale for enabling the SoundWire interrupt in the
init, this can be done from the enable_sdw_irq() callback.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20221111042653.45520-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>