ASoC: Intel: sof_sdw: fix typo in components string

ASoC: Intel: sof_sdw: fix typo in components string

The component string attributes are separated by spaces, not commas.

Fixes: b1ca2f63e20b4 ("ASoC: Intel: sof_sdw: add amp number in components string for ucm")
Reported-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200515210731.10942-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>