Bluetooth: Add hci_conn flag for new link key generation

For LE Secure Connections we want to trigger cross transport key
generation only if a new link key was actually created during the BR/EDR
connection. This patch adds a new flag to track this information.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9092964..42f9362 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -559,6 +559,7 @@
 	HCI_CONN_AUTH_INITIATOR,
 	HCI_CONN_DROP,
 	HCI_CONN_PARAM_REMOVAL_PEND,
+	HCI_CONN_NEW_LINK_KEY,
 };
 
 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)