Bluetooth: Use new hci_skb_pkt_* wrappers for drivers

The new hci_skb_pkt_* wrappers are mainly intented for drivers to
require less knowledge about bt_cb(sbk) handling. So after converting
the core packet handling, convert all drivers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 57eb935..24a652f 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -249,10 +249,10 @@
 	hst = hci_get_drvdata(hdev);
 
 	/* Prepend skb with frame type */
-	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
+	memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
 
-	BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type,
-			skb->len);
+	BT_DBG("%s: type %d len %d", hdev->name, hci_skb_pkt_type(skb),
+	       skb->len);
 
 	/* Insert skb to shared transport layer's transmit queue.
 	 * Freeing skb memory is taken care in shared transport layer,
@@ -268,7 +268,7 @@
 
 	/* ST accepted our skb. So, Go ahead and do rest */
 	hdev->stat.byte_tx += len;
-	ti_st_tx_complete(hst, bt_cb(skb)->pkt_type);
+	ti_st_tx_complete(hst, hci_skb_pkt_type(skb));
 
 	return 0;
 }