Support for Spansion S25FL132K and S25FL164K.

Tested with actual S25FL164K via Arduino SPI.

Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>

git-svn-id: svn://flashrom.org/flashrom/trunk@1786 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1