fix dhcp static mapping/client identifier validation
fix dhcp static mapping/client identifier validation

brunostein/pfsense,pfsense/pfsense,phil-davis/pfsense,ch1c4um/pfsense,brunostein/pfsense,brunostein/pfsense,dennypage/pfsense,dennypage/pfsense,ptorsten/pfsense,BlackstarGroup/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,pfsense/pfsense,NOYB/pfsense,phil-davis/pfsense,NOYB/pfsense,jxmx/pfsense,NOYB/pfsense,NewEraCracker/pfsense,BlackstarGroup/pfsense,phil-davis/pfsense,jxmx/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,pfsense/pfsense,pfsense/pfsense,dennypage/pfsense,BlackstarGroup/pfsense,BlackstarGroup/pfsense,ptorsten/pfsense,jxmx/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,dennypage/pfsense,ptorsten/pfsense