move firewall optimization and state tracking descriptions back to tips
two areas with the same kind of issue.
1) system_advanced_firewall.php, "Firewall Optimization Options". The options in the drop down were just "normal", "aggressive", etc. with the accompanying descriptions below the drop down. Should go back that way, the drop down ends up way too wide otherwise, and the description of a config option shouldn't be in its config selection.
2) firewall_rules_edit.php, "State type". Should go back to "keep state", "no state", "sloppy state", "synproxy state" with the remaining text below