Add support for the SST25VF040B 4 Mbit SPI flash chip

Straight from the data sheet, not tested.

Corresponding to flashrom svn r175 and coreboot v2 svn r3036.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
1 file changed