Add initial support for FriendlyARM Nanopi A64
board with below features:
- U-Boot 2017.11
- Linux 4.14
- Default packages from buildroot
Cc: Yuefei <yftan@friendlyarm.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
