dai-zephyr: call dma_stop() also if previous state is COMP_STATE_PAUSED

To ensure DMA is stopped in all cases, we need to call dma_stop()
also when the previous state is PAUSED.

With Zephyr commit ec9d94e06d4a ("dma: Document expected behavior of
start/stop") the dma interface semantics were clarified. Build on
this and call dma_stop() in all cases and make the code simpler to
follow.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

src/audio/dai-zephyr.c

@@ -1102,9 +1102,8 @@ static int dai_comp_trigger_internal(struct comp_dev *dev, int cmd)
 		dai_trigger_op(dd->dai, cmd, dev->direction);
 #else
 		dai_trigger_op(dd->dai, cmd, dev->direction);
-		if (prev_state == COMP_STATE_ACTIVE) {
-			ret = dma_stop(dd->chan->dma->z_dev, dd->chan->index);
-		} else {
+		ret = dma_stop(dd->chan->dma->z_dev, dd->chan->index);
+		if (ret) {
 			comp_warn(dev, "dma was stopped earlier");
 			ret = 0;
 		}