Acceptance: stop using deprecated parameter `manage_redhat_firewall`

The acceptance tests were using the deprecated parameter
`manage_redhat_firewall` from the puppetdb module.  This commit
just changes the call to the module so that it uses the new
replacement parameters.
Merge pull request #413 from cprice-puppet/maint/master/stop-using-deprecated-param-from-pdb-mod

Acceptance: stop using deprecated parameter `manage_redhat_firewall`