Added missing permission to solve the following permissions warning

6s          Warning   FailedDescribeInstanceTypes   awscluster/ngirard-dh-5bb5w                           insufficient permissions to describe instance types for instance type "m6i.xlarge", falling back to the default architecture of "x86_64": operation error EC2: DescribeInstanceTypes, https response error StatusCode: 403, RequestID: 387549b4-ab58-48af-b14d-3882b6c7da52, api error UnauthorizedOperation: You are not authorized to perform this operation. User: arn:aws:iam::726924432237:user/ngirard-dh-5bb5w-openshift-cluster-api-aws-72f7q is not authorized to perform: ec2:DescribeInstanceTypes because no identity-based policy allows the ec2:DescribeInstanceTypes action

Author: vr4manta

manifests/0000_30_cluster-api_01_credentials-request.yaml

@@ -25,6 +25,7 @@ spec:
       - ec2:DescribeDhcpOptions
       - ec2:DescribeImages
       - ec2:DescribeInstances
+      - ec2:DescribeInstanceTypes
       - ec2:DescribeInternetGateways
       - ec2:DescribeSecurityGroups
       - ec2:DescribeSubnets