ASoC: Intel: common: add entries for SOF-based machine drivers

While we are at it, add entries for machine drivers that are used on
SOF-based platforms. The drivers will be submitted upstream after the
core SOF patches, but there's no harm in adding these references now.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>