veyron2/security: Add the Resolve label.

Change-Id: I155e4f0a2713c1bca770de7c4a058449a15ce98f
diff --git a/services/security/discharger.vdl.go b/services/security/discharger.vdl.go
index e70a23a..9d0adaf 100644
--- a/services/security/discharger.vdl.go
+++ b/services/security/discharger.vdl.go
@@ -149,7 +149,7 @@
 	// This will change when it is replaced with Signature().
 	switch method {
 	case "Discharge":
-		return []interface{}{security.Label(1)}, nil
+		return []interface{}{security.Label(2)}, nil
 	default:
 		return nil, nil
 	}