e080ce86 Thu Nov 11 09:45:51 CST 2021 Philippe Mathieu-Daudé <philmd@redhat.com> hw/nvme/ctrl: Have nvme_addr_write() take const buffer
The 'buf' argument is not modified, so better pass it as const type.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>