[coreboot] [PATCH] New Socket370 and Model 68x for CAR

[Joseph Smith]

Hello,
This patch adds a new socket for FCPGA370 and PGA370 CPU's. This new 
socket (called socket_FC_PGA370) will make the CAR transition alot 
easier. When done transitioning all the boards and cpu's the old 
socket_PGA370 (kind of misleading for the FC's) can be deleted as well 
as model_6xx. I will be testing a bunch of 370 cpu's this week so 
hopefully the model_6xx will be no longer needed. This patch also 
includes first CAR support for model_68x FCPGA CPU's.

Build and boot tested.

Signed-off by: Joseph Smith