ath10k: fix block comments style

Fix output from checkpatch.pl like:
 Block comments use a trailing */ on a separate lin

Signed-off-by: Marcin Rokicki <marcin.rokicki@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/htc.c

@@ -422,7 +422,8 @@ static void ath10k_htc_control_rx_complete(struct ath10k *ar,
 					   struct sk_buff *skb)
 {
 	/* This is unexpected. FW is not supposed to send regular rx on this
-	 * endpoint. */
+	 * endpoint.
+	 */
 	ath10k_warn(ar, "unexpected htc rx\n");
 	kfree_skb(skb);
 }