Defined in github.com/aws/aws-sdk-go/service/ec2/api.go
Set to simple to enable enhanced networking with the Intel 82599 Virtual Function interface for the AMI and any instances that you launch from the AMI.
There is no way to disable sriovNetSupport at this time.
This option is supported only for HVM AMIs. Specifying this option with a PV AMI can make instances launched from the AMI unreachable.