ASoC: Intel: Skylake: Fix memory leak during init instance

param_data variable is allocated during set module format of init
instance is not getting freed and hence can cause a memory leak.
So free it up.

Signed-off-by: Mousumi Jana <mousumix.jana@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>