Merge pull request #883 from android/tj/packaging-rename

Rename packaging.yml to packaging.yaml

Author: tunjid

.google/packaging.yml renamed to .google/packaging.yaml

@@ -28,4 +28,4 @@ languages:    [Kotlin]
 solutions:    [Mobile]
 github:       android/architecture-samples
 level:        INTERMEDIATE
-license: apache2
+license: apache2