Redmine #4568 Preserve MLPPP settings when saving interface settings
Redmine #4568 Preserve MLPPP settings when saving interface settings

This is a resubmit of https://github.com/pfsense/pfsense/pull/1900 after integrating to the current master.

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