Add information about model being generated from context

Change-Id: Icd859b20827817344b632cd7507bec1ef25c93ec
diff --git a/test-cookiecutter-reclass.groovy b/test-cookiecutter-reclass.groovy
index 693c4b0..f7960c8 100644
--- a/test-cookiecutter-reclass.groovy
+++ b/test-cookiecutter-reclass.groovy
@@ -39,6 +39,8 @@
     def templateOutputDir = templateBaseDir
     sh "rm -rf ${generatedModel} || true"
 
+    println "Generating model from context ${modelFile}"
+
     def productList = ["infra", "cicd", "opencontrail", "kubernetes", "openstack", "stacklight"]
     for (product in productList) {
         if (product == "infra" || (templateContext.default_context["${product}_enabled"]