[coreboot] [PATCH]kconfig tweaks

[Patrick Georgi]

Hi,

attached patch changes the Kconfig configuration to carry all
configuration variables that are around in newconfig for all boards
currently supported. Except:
- AMD specific variables on non-AMD boards
- DCACHE_RAM stuff on non-CAR boards
- SMP values (MAX_PHYSICAL_CPUS etc) on non-SMP boards
- newconfig and old stuff (CONFIG_IDE, CONFIG_FAKE_SPDROM)

This doesn't mean that those variables are all the same values, merely,
that they exist.

Once all boards are at that status (and kconfig'd before), I'll tighten
my tool that figures this out to compare values, too.

Where values were added, I looked what the newconfig values are
(IRQ_SLOT_COUNT mostly)

Signed-off-by: Patrick Georgi