Try enabling "legacy" branch besides vendor and edge here: https://github.com/armbian/build/blob/0397a2492ddd7f87d3ab0a7875f1ec8346266ae0/config/boards/orangepi5.conf#L8
Then build an image using "legacy" as kernel. May build and boot, may not. This branch is abandoned. Dont ask for support when playing with it.