audio: fix build error

Author: redchenjs

main/src/user/audio_player.c

@@ -154,10 +154,10 @@ void audio_player_play_file(uint8_t idx)
 
 void audio_player_set_mode(uint8_t idx)
 {
-#ifdef CONFIG_ENABLE_AUDIO_PROMPT
     aplay_mode = idx;
     ESP_LOGI(TAG, "mode: %u", aplay_mode);
 
+#ifdef CONFIG_ENABLE_AUDIO_PROMPT
     if (aplay_mode) {
         xEventGroupClearBits(user_event_group, AUDIO_PLAYER_EXIT_BIT);
         audio_player_init();

main/src/user/audio_render.c

@@ -133,7 +133,9 @@ static void audio_render_task(void *pvParameter)
         xEventGroupClearBits(user_event_group, VFX_FFT_NULL_BIT);
 #endif
 
+#if defined(CONFIG_ENABLE_AUDIO_PROMPT) || !defined(CONFIG_AUDIO_INPUT_NONE) || defined(CONFIG_ENABLE_VFX)
 return_item:
+#endif
         vRingbufferReturnItem(audio_buff, (void *)data);
     }
 }