Bring a few improvements from NetBSD: - recognize a few more models. - better memory range detection, especially if they are in direct translation   windows on 68040. - better internal video address detection.
Bring a few improvements from NetBSD:
- recognize a few more models.
- better memory range detection, especially if they are in direct translation
  windows on 68040.
- better internal video address detection.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars