BZ-2109389 adding missing AWS permissions

Author: bscott-rh

modules/installation-aws-permissions.adoc

@@ -185,6 +185,7 @@ If you have not created an elastic load balancer (ELB) in your AWS account, the
 * `s3:GetBucketCors`
 * `s3:GetBucketLocation`
 * `s3:GetBucketLogging`
+* `s3.GetBucketPolicy`
 * `s3:GetBucketObjectLockConfiguration`
 * `s3:GetBucketReplication`
 * `s3:GetBucketRequestPayment`
@@ -217,6 +218,7 @@ If you have not created an elastic load balancer (ELB) in your AWS account, the
 [%collapsible]
 ====
 * `autoscaling:DescribeAutoScalingGroups`
+* `ec2:DeletePlacementGroup`
 * `ec2:DeleteNetworkInterface`
 * `ec2:DeleteVolume`
 * `elasticloadbalancing:DeleteTargetGroup`