
Add document for Banana Pi F3 board which based on SpacemiT's K1 SoC. Signed-off-by: Kongyang Liu <seashell11234455@gmail.com> Signed-off-by: Huan Zhou <pericycle.cc@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Reviewed-by: Yixun Lan <dlan@gentoo.org>