Merge customizations for EMR

Author: aws-sdk-python-automation

.changes/next-release/enhancement-EMR-86454.json

@@ -0,0 +1,5 @@
+{
+  "type": "enhancement",
+  "category": "EMR",
+  "description": "Updated create-cluster and describe-cluster commands to support --extended-support and --no-extended-support arguments"
+}