ASoC: Intel: sof_cs42l42: support BT offload audio

Add the capability to machine driver of creating DAI Link for BT
offload. Although BT offload always uses SSP2 port but we reserve the
flexibility to assign the port number in macro.

Signed-off-by: Brent Lu <brent.lu@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220708110030.658468-2-brent.lu@intel.com


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