Add preliminary SPI flash identification support for SPI chips attached
to ITE IT8716F Super I/O. Right now this is hardcoded to the Gigabyte
M57SLI board. It works only with rev 2.0 of the board, but it will bail
out on earlier versions, so no damage can occur.
Signed-off-by: Carl-Daniel Hailfinger <firstname.lastname@example.org>
Acked-by: Ward Vandewege <email@example.com>