Hello!
Using Debian packaged by the Olimex people (not Armbian, see their image here) I tried your 1-wire DTS plugin but it did not work.
Trying to understand why, I contacted the linux-sunxi developers who considered that your DTS plugin is outdated.
See the discussion here.
Their suggestions resulted in this DTS file that should work also on Armbian.
I did not make a pull request towards your overlay repository as I am not able to update the param_w1_pin_int_pullup setting code in the sun50i-a64-fixup.scr-cmd file.
ilario got a reaction from going in Testers wanted: sunxi Device Tree overlays