Add riscv64 support to goldfish image script

Signed-off-by: Chen Guoyin <chenguoyin.cgy@linux.alibaba.com>
Signed-off-by: Mao Han <han_mao@linux.alibaba.com>
Change-Id: Ibcb5b52eb368fede688a9b3b0c38cf10d1990b51
2 files changed