Amazon API Gateway Update: Added support for custom domain names for private APIs.

Author: AWS

.changes/next-release/feature-AmazonAPIGateway-00c171c.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "Amazon API Gateway",
+    "contributor": "",
+    "description": "Added support for custom domain names for private APIs."
+}