ASoC: SOF: Intel: hda: simplify NHLT handling

The existing code does an init/free for each piece of information
needed. We can instead initialize the NHLT table in the .probe() and
free it in the .remove() callback.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220421201946.1547041-1-pierre-louis.bossart@linux.intel.com


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