Fix Dynamic Tree PHC's Paperbark, Cinnamon, Maple Trees, and Passionfruit Vines not generatying at all.

See https://github.com/DynamicTreesTeam/DynamicTrees-PHC/issues/17. The devs no longer support 1.12, this has been open for over a year with nothing being done since. A PR to the mod or a fix here would be nice.