ASoC: Intel: boards: reset acpi_chan_package

cppcheck complains about possible tests of uninitialized 'aif_value'
members. This isn't really possible but static analysis cannot know
what ACPICA does, so make sure the acpi_chan_package structure is
reset prior to use to make the warning go away.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220520211719.607543-10-pierre-louis.bossart@linux.intel.com


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