Merge pull request GoogleCloudPlatform#3026 from justinsb/fix_output_…

…path

chore: fix output path for types.go file

dev/tools/controllerbuilder/scaffold/apis.go

@@ -90,7 +90,7 @@ func (a *APIScaffolder) TypeFileNotExist(resourceProtoName string) bool {
 }
 
 func (a *APIScaffolder) PathToTypeFile(resourceProtoName string) string {
-	fileName := strings.ToLower(resourceProtoName) + "_reference.go"
+	fileName := strings.ToLower(resourceProtoName) + "_types.go"
 	return filepath.Join(a.BaseDir, a.GoPackage, fileName)
 }