tools: plugin: tplg: Fix a couple of memory leaks

Free the memory allocated for tplg base and available input/output
formats when the topology is freed.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

tools/plugin/alsaplug/tplg.c

@@ -1445,6 +1445,7 @@ int plug_free_pipelines(snd_sof_plug_t *plug, struct tplg_pipeline_list *pipelin
 
 void plug_free_topology(snd_sof_plug_t *plug)
 {
+ struct tplg_context *ctx = &plug->tplg;
  struct list_item *item, *_item;
 
  list_for_item_safe(item, _item, &plug->pcm_list) {
@@ -1456,7 +1457,10 @@ void plug_free_topology(snd_sof_plug_t *plug)
 
  list_for_item_safe(item, _item, &plug->widget_list) {
  struct tplg_comp_info *comp_info = container_of(item, struct tplg_comp_info, item);
+ struct sof_ipc4_available_audio_format *available_fmts = &comp_info->available_fmt;
 
+ free(available_fmts->output_pin_fmts);
+ free(available_fmts->input_pin_fmts);
  free(comp_info->name);
  free(comp_info->stream_name);
  free(comp_info->ipc_payload);
@@ -1478,5 +1482,6 @@ void plug_free_topology(snd_sof_plug_t *plug)
  free(pipe_info);
  }
 
+ free(ctx->tplg_base);
  tplg_debug("freed all pipelines, widgets, routes and pcms\n");
 }