usb-storage: add commandlog property

Add property so scsi command logging can be switched
at runtime instead of compile time.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20201105134112.25119-3-kraxel@redhat.com
1 file changed