ASoC: SOF: topology: fix: parse hda_tokens to &config->hda

ASoC: SOF: topology: fix: parse hda_tokens to &config->hda

Items in hda_tokens are for &config->hda. So fix it to the right
object. This error has been harmless as hda_tokens array was empty.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200415202816.934-22-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>