Change in coreboot[master]: cpu/intel/car: Compute more things during runtime

[Arthur Heymans (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/23467

to look at the new patch set (#4).

Change subject: cpu/intel/car: Compute more things during runtime
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cpu/intel/car: Compute more things during runtime

This does a few more things during runtime:
* Compute the amount of variable MTRR's during runtime from
  MTRR_CAP_MSR;
* Compute the PHYSMASK_HI during runtime from cpuid;
* Rely less on the assembler to get values derived from
  CONFIG_DCACHE_RAM_BASE and CONFIG_DCACHE_RAM_SIZE;

Tested on X220: still boots

Change-Id: I67d03ad5d612bd5e022e6eb619d988e8ccbf087a
Signed-off-by: Arthur Heymans 
---
M src/cpu/intel/car/cache_as_ram.S
1 file changed, 69 insertions(+), 43 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/23467/4