Update aws/resource_aws_dx_gateway_association.go
Update aws/resource_aws_dx_gateway_association.go

Review comment.

Co-Authored-By: Wilken Rivera <34c6fceca75e456f25e7e99531e2425c6c1de443@wilkenrivera.com>
terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,terraform-providers/terraform-provider-aws,terraform-providers/terraform-provider-aws,Ninir/terraform-provider-aws,terraform-providers/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,kjmkznr/terraform-provider-aws,Ninir/terraform-provider-aws,Ninir/terraform-provider-aws,Ninir/terraform-provider-aws