[coreboot] On handling vendorcode

[Patrick Georgi]

Hi everybody,

We recently landed a change (https://review.coreboot.org/51827) to be more
selective which parts of src/vendorcode are checked for coding style
because some areas are really coreboot code "by vendors".

The original purpose of that subhierarchy was to isolate code we draw in
from the outside to make every dev aware that the file they're touching has
some upstream other than coreboot and that this code shouldn't be modified
except to track that upstream.

Any objections to moving the code out there that has no other upstream
(e.g. src/vendorcode/google/chromeos or src/vendorcode/eltan, I think?)
while moving in code from elsewhere in the tree that fits the "it has a
foreign upstream" description (e.g. the lzma library)?

Regards,
Patrick