Issue report DMA:PL330 Runtime PM usage count underflow!

Dear maintainers

I find the kernel log:

```
[123274.851401] dma-pl330 ff250000.dma-controller: Runtime PM usage count underflow!
[123421.875861] dma-pl330 ff250000.dma-controller: Runtime PM usage count underflow!
[124251.889968] dma-pl330 ff250000.dma-controller: Runtime PM usage count underflow!
```

since 6.18.X. 

Today I have time to read code, and find the code:

```
pl330_terminate_all
...
        list_splice_tail_init(&pch->completed_list, &pl330->desc_pool);
        spin_unlock_irqrestore(&pch->lock, flags);
        if (power_down)
                pm_runtime_put_autosuspend(pl330->ddma.dev);
        pm_runtime_put_autosuspend(pl330->ddma.dev);
```

there are 2 pm_runtime_put, I think this is why underflow.

I don't know how to fix it. thus report an issue.

I tried remove the second `pm_runtime_put_autosuspend`, and and idle overnight, the log is gone.

BR.
Ning.