wifi: ath12k: use kfree_skb() instead of kfree()

Sk_buffs are supposed to be freed with kfree_skb().

Fixes: d8899132 ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/Y+4ejiYakhEvEw7c@kili

drivers/net/wireless/ath/ath12k/dp_tx.c

@@ -270,7 +270,7 @@ int ath12k_dp_tx(struct ath12k *ar, struct ath12k_vif *arvif,
 					  skb_ext_desc->len, DMA_TO_DEVICE);
 		ret = dma_mapping_error(ab->dev, ti.paddr);
 		if (ret) {
-			kfree(skb_ext_desc);
+			kfree_skb(skb_ext_desc);
 			goto fail_unmap_dma;
 		}