As discussed on alsa-devel, a zero value is useful to get rid of all
quirks. Set default to -1 and align types as done in other machine
drivers.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>