Rename S3 buckets for migration

- Use S3 bucket in Arm infrastrcture
- As there are multiple environments such as (DEV, TEST, PROD)
suffix bucket with INRA_ENV name.

Signed-off-by: Saheer Babu <saheer.babu@arm.com>
diff --git a/misra-docker-images/builders.sh b/misra-docker-images/builders.sh
index 977d4c9..cdd89ce 100755
--- a/misra-docker-images/builders.sh
+++ b/misra-docker-images/builders.sh
@@ -17,7 +17,7 @@
 export ECR=987685672616.dkr.ecr.us-east-1.amazonaws.com
 # we are expecting private files to be kept in the dockerfiles/*
 # subdirs with a matching name for the image
-aws s3 cp --recursive s3://trustedfirmware-misra/dockerfiles/ .
+aws s3 cp --recursive s3://openci-trustedfirmware-misra-${INFRA_ENV}/dockerfiles/ .
 find .
 aws ecr get-login-password --region us-east-1|docker login --username AWS --password-stdin $ECR