soundwire: intel: fix inversion in devm_kcalloc parameters

the number of elements and size are inverted, fix.

This probably only worked because the number of properties is
hard-coded to 1.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Vinod Koul <vkoul@kernel.org>