GitLab

- CK804, MCP04, MCP2 use the isa bridges..
- Newer nvidia mcp's do use the smbus controllers (Found by
  Michael Karcher).
- gpio line check breaks EPoX EP-8RDA3+, and should be wider.

Corresponding to flashrom svn r810.
Signed-off-by: Luc Verhaegen <libv@skynet.be>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>