[coreboot-gerrit] Change in coreboot[master]: util/cbfstool: Introduce concept of mmap_window

[Paul Menzel (Code Review)]

Attention is currently required from: Furquan Shaikh.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/47831 )

Change subject: util/cbfstool: Introduce concept of mmap_window
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Patch Set 16:

(1 comment)

Patchset:

PS16: 
Kyösti found the error:

```
build/util/cbfstool/cbfstool build/coreboot.pre.tmp add-master-header
printf " CBFS fallback/romstage\n"
CBFS fallback/romstage
build/util/cbfstool/cbfstool build/coreboot.pre.tmp add-stage -f build/cbfs/fallback/romstage.elf -n fallback/romstage -c none -r COREBOOT -a 64 -S ".car.data" --xip
E: Host address(ffc002e4) not in any mmap window!
printf " CBFS fallback/ramstage\n"
CBFS fallback/ramstage
```

This is a 32-bit user space system. No idea, if it matters.