Add license type: Apache2+MIT+BSD = NOTICE licenses

Bug: 68860345
Bug: 69058154
Bug: 151953481

Test: no code changes
Change-Id: I377c0f8026c94959bdecf560c78bf47c2eb4d3b6
diff --git a/METADATA b/METADATA
index 68e065a..3d9ffd0 100644
--- a/METADATA
+++ b/METADATA
@@ -10,6 +10,7 @@
     value: "https://github.com/google/brotli.git"
   }
   version: "v1.0.7"
+  license_type: NOTICE
   last_upgrade_date {
     year: 2018
     month: 10