Bluetooth: Add missing cmd_complete for mgmt_load_link_keys

The command complete event was completely missing for this command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index cb3af4e..e4a353c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1052,6 +1052,8 @@
 								key->pin_len);
 	}
 
+	cmd_complete(sk, index, MGMT_OP_LOAD_LINK_KEYS, NULL, 0);
+
 	hci_dev_unlock_bh(hdev);
 	hci_dev_put(hdev);