Add config variable for GPU support for ECS anywhere
Add config variable for GPU support for ECS anywhere

kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent,aws/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-agent,aws/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-init