tf-a-lts-automation.yaml: Update S3 bucket name

Update the S3 bucket name to reflect the changes
following the completion of the OpenCI migration

Change-Id: I21107c2fc976e4d55a7c0362eec30ff624b1450a
Signed-off-by: Arthur She <arthur.she@linaro.org>
diff --git a/tf-a-lts-automation.yaml b/tf-a-lts-automation.yaml
index 610ba79..b228f76 100644
--- a/tf-a-lts-automation.yaml
+++ b/tf-a-lts-automation.yaml
@@ -84,7 +84,7 @@
 
             # Create new download space
             echo "Create new download space for \"${new_branch}\""
-            aws s3 sync s3://trustedfirmware-prod-storage/tf-a s3://trustedfirmware-prod-storage/tf-a-${new_branch}
+            aws s3 sync s3://trustedfirmware-prod-storage/tf-a s3://openci-trustedfirmware-storage-prod/tf-a-${new_branch}
 
             echo "CI Environment Setup for ${new_branch} branch Completed" > subject.txt
             cat << EOF >email.txt