read code. SBbus reads to RAM now work. Yah!
- Rename the register constants to something I can look at
more easily.
- Make the logic flow match the flow from V1 assembly
- #if 0 out other SMbus functions that are still broken.
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2353 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1