leeco-zl1: new device
This MR adds extremely basic support for the leeco-zl1
(LeEco Le Pro3).
What works:
- booting
- USB networking
- Kinda framebuffer - boot logo shows
What doesn't work or isn't tested:
- everything else
Wiki page: https://wiki.postmarketos.org/wiki/LeEco_Le_Pro3_(leeco-zl1)