Add new Spacemit family and support Banana Pi (BPI F3) Open Source Smart Router

[going]

 

BPI-F3 Introduction

 

For this device, we can make an image using the Source Code:

BananaPi_BPI-F3#_development

 

Let's try to add support to the Armbian build system.

[Werner]

https://github.com/armbian/build/pull/6771

[going]

@Werner While I was doing something, they had already done it.

[Lion Wang]

SpacemiT K1 8 core RISC-V chip (Banana Pi BPI-F3) RISC-V IME set Specification public on github

 

https://github.com/space-mit/riscv-ime-extension-spec