audio: Fixed resource leak in unlikely failure case during device add.

src/audio/SDL_audio.c

@@ -551,6 +551,8 @@ static SDL_AudioDevice *CreatePhysicalAudioDevice(const char *name, SDL_bool isc
     if (SDL_InsertIntoHashTable(current_audio.device_hash, (const void *) (uintptr_t) device->instance_id, device)) {
         SDL_AtomicAdd(device_count, 1);
     } else {
+        SDL_DestroyCondition(device->close_cond);
+        SDL_DestroyMutex(device->lock);
         SDL_free(device->name);
         SDL_free(device);
         device = NULL;