forked from Mirrors/opensbi

a3 and a4 cannot be reset because used in fw_platform_init. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>
a3 and a4 cannot be reset because used in fw_platform_init. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>