Bluetooth: Use BIT(n) macro instead of manually encoding (1 << n)

The flags for the management command table used manual encoding of
bits in the form of (1 << n). It is however preferred to use BIT(n)
macro instead.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

include/net/bluetooth/hci_core.h

@@ -1289,10 +1289,10 @@ void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
 
 void hci_sock_dev_event(struct hci_dev *hdev, int event);
 
-#define HCI_MGMT_VAR_LEN	(1 << 0)
-#define HCI_MGMT_NO_HDEV	(1 << 1)
-#define HCI_MGMT_UNTRUSTED	(1 << 2)
-#define HCI_MGMT_UNCONFIGURED	(1 << 3)
+#define HCI_MGMT_VAR_LEN	BIT(0)
+#define HCI_MGMT_NO_HDEV	BIT(1)
+#define HCI_MGMT_UNTRUSTED	BIT(2)
+#define HCI_MGMT_UNCONFIGURED	BIT(3)
 
 struct hci_mgmt_handler {
 	int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,