Add support for Intel Lynx Point low-power and Wellsburg.

New IDs taken from Intel's patches for the Linux kernel.
Also, refine original Lynx Point naming etc.

Based on the chromiumos patch
Change-Id: I303a05baa80e4449e70d20adf78ebc7128b88d8e
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>

Signed-off-by: Stefan Tauner <stefan.tauner@student.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@student.tuwien.ac.at>

git-svn-id: svn://coreboot.org/flashrom/trunk@1656 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1