ASoC: Intel: Skylake: Unload all the loadable modules

There could be more than one loadable module in a pipeline.
So unload all modules whilst parsing the list.

Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>