github: Add riscv kernel build and upload Add required pacakge for cross-compile riscv kernel, workflow for build and upload kernel. Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>
github: Add riscv kernel build and upload Add required pacakge for cross-compile riscv kernel, workflow for build and upload kernel. Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>