Add Kconfig and makefile for RISC-V Also modify MAINTAINERS for it.
Signed-off-by: Rick Chen Signed-off-by: Rick Chen Signed-off-by: Greentime Hu Cc: Padmarao Begari
# # Copyright (C) 2017 Andes Technology Corporation. # Rick Chen, Andes Technology Corporation <rick@andestech.com> # # SPDX-License-Identifier: GPL-2.0+ # head-y := arch/riscv/cpu/$(CPU)/start.o libs-y += arch/riscv/cpu/$(CPU)/ libs-y += arch/riscv/lib/
