Add Winbond W49F020 support

This chip is used on some Xbox versions.

Corresponding to flashrom svn r1086.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Alec Wright <alecjw@member.fsf.org>
1 file changed