ASoC: SOF: compress: Dynamically allocate pcm params struct

We need to extend sof_ipc_pcm_parmas with additional data in order
to send compress_params to SOF FW.

The extensions will be done at runtime so we need to dynamically
allocate pcm object of type struct sof_ipc_pcm_params.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220712141531.14599-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>