RISC-V linux platform support

[MaoniinoaM]

Hi, mraa team,
I try to build MRAA library in a RISCV LINUX platform, VisionFive board.
And it says, "Only x86, arm, mips, PERIPHERALMAN and mock platforms currently supported".

so When will MRAA support RISCV linux platform?

[MaoniinoaM]

Or how to modify it to support RISCV quickly?

[Matheus C. França]

Likewise, it would also be relevant to extend support to other popular socs eg allwinner D1.