Add license type: Apache2+BSD+PSFL=NOTICE licenses am: 10dfc67d2d am: b84c56b4c0 am: bdd82cca0d

Change-Id: Icab52017fcd25ab29ca708593a0b6f0a7d6d4319
diff --git a/METADATA b/METADATA
index a7117e8..a630c59 100644
--- a/METADATA
+++ b/METADATA
@@ -10,6 +10,7 @@
     value: "https://github.com/dateutil/dateutil/"
   }
   version: "2.8.0"
+  license_type: NOTICE
   last_upgrade_date {
     year: 2019
     month: 2