ASoC: intel: sof_sdw: Increment be_id in init_dai_link

Rather than incrementing the ID for the dai_links in many places
throughout the code, just increment it each time we initialise a new DAI
link.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230915075611.1619548-5-yung-chuan.liao@linux.intel.com


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