[flashrom] [carFl mem] Reduce memory buffers v2

[Tadas Slotkus]

Hi all,

Sending version two of patches, which reduce memory usage for flashrom
in coreboot and deals with globals. 1-9 patches are the same as I sent
before (two header lines have changed automatically in each patchfile).

Now you may look at all patches. It should work with internal and dummy
programmers in normal OS. To work in coreboot ramstage/romstage requires
a lot of cleanups and workarounds as much features used in the code
aren't there supported (unless you are running it as a payload). Any
comments are apreciated.

Thanks,
Tadas