Add license type: Apache2+BSD are NOTICE licenses am: f755fa5fa1 am: a2a2211e99 am: dd68c7ffb9 am: 58e2b0ddcf

Change-Id: I08206730274d4f16059b4cfd0f678d477fdabbbd
diff --git a/METADATA b/METADATA
index b640262..1aafab3 100644
--- a/METADATA
+++ b/METADATA
@@ -10,6 +10,7 @@
     value: "https://github.com/etingof/pyasn1"
   }
   version: "v0.4.7"
+  license_type: NOTICE
   last_upgrade_date {
     year: 2019
     month: 9