Bluetooth: Add HCI_PERIODIC_INQ to dev_flags

This patch adds the HCI_PERIODIC_INQ flag to dev_flags. This flag
tracks if periodic inquiry is enabled or not.

Signed-off-by: Andre Guedes <aguedespe@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9cf088d..346f087 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -102,6 +102,7 @@
 	HCI_DISCOVERABLE,
 	HCI_LINK_SECURITY,
 	HCI_PENDING_CLASS,
+	HCI_PERIODIC_INQ,
 };
 
 /* HCI ioctl defines */