Bluetooth: Fixed checkpatch warnings

Fixed some checkpatch warnings in mgmt.c.
Signed-off-by: Cristian Chilipirea <cristian.chilipirea@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>

net/bluetooth/mgmt.c

@@ -2944,7 +2944,8 @@ int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
 	return 0;
 }
 
-int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, bool persistent)
+int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
+		      bool persistent)
 {
 	struct mgmt_ev_new_link_key ev;