ASoC: SOF: append extended data to sof_ipc_comp_process

Append the extended data to the end of the struct sof_ipc_comp_process,
construct the ipc for COMP_NEW during the topology load stage.
Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200904132744.1699575-15-kai.vehmanen@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/topology.c

@@ -2231,18 +2231,15 @@ static int sof_process_load(struct snd_soc_component *scomp, int index,
 		ipc_data_size = 0;
 	}
 
-	process = kzalloc(ipc_size, GFP_KERNEL);
+	process = (struct sof_ipc_comp_process *)
+		  sof_comp_alloc(swidget, &ipc_size, index, 0);
 	if (!process) {
 		ret = -ENOMEM;
 		goto out;
 	}
 
 	/* configure iir IPC message */
-	process->comp.hdr.size = ipc_size;
-	process->comp.hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
-	process->comp.id = swidget->comp_id;
 	process->comp.type = type;
-	process->comp.pipeline_id = index;
 	process->config.hdr.size = sizeof(process->config);
 
 	ret = sof_parse_tokens(scomp, &process->config, comp_tokens,