ASoC: Intel: Drop legacy HSW/BDW board-match information

With board-matching information for legacy solution moved to local
directory, there is no need to expose it globally.

Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220815165818.3050649-5-cezary.rojewski@intel.com


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