enable unlocking (erasing/writing) W39V040FB chips

Add code for the unlocking (erasing/writing) of Winbond W39V040FB
chips, enabling erasing/writing this type of chip.

Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

git-svn-id: svn://coreboot.org/flashrom/trunk@1248 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
3 files changed