Update default instance size of processor to r3.2xlarge
Update default instance size of processor to r3.2xlarge

phrawzty/socorro-infra,mozilla/socorro-infra,peterbe/socorro-infra,mozilla/socorro-infra,phrawzty/socorro-infra,phrawzty/socorro-infra,mozilla/socorro-infra,peterbe/socorro-infra,peterbe/socorro-infra