Mainline linux support for BPI-M2 Zero

[PATCH] ARM: sun8i: h2+: add support for Banana Pi M2 Zero board

https://groups.google.com/forum/#!topic/linux-sunxi/I8xJS_6q6kg

https://www.mail-archive.com/[email protected]/msg1525996.html

thank Icenowy do many work for BPI-M2 zero for mainline linux support.

https://github.com/Icenowy/linux/commits/aosc-sunxi-2-4.13.y