Fix erroneous use of cidr_suffix in setup.sh
Fix erroneous use of cidr_suffix in setup.sh

[#80635566]

Signed-off-by: Steve Powell <03c892efa7d90f6161831192fc2bb1ab9ff2d4d9@pivotal.io>

cloudfoundry-incubator/garden-linux,shashidharatd/garden-linux,cloudfoundry-incubator/garden-linux,shashidharatd/garden-linux,shashidharatd/garden-linux,cloudfoundry-incubator/garden-linux,shashidharatd/garden-linux