This allows modern architectures which don't care about vga
compatibility (risc-v for example) build bochs-display without
including all vga emulation too.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NAlistair Francis <alistair.francis@wdc.com>
Message-id: 20181005160147.892-2-kraxel@redhat.com