[flashrom] [PATCH] Error out when chipset/board doesn't decode full ROM

[Uwe Hermann]

See patch.

I'm thankful for better suggestions to track which chipsets and
especially boards can decode how much.

For boards we need to autodetect them (not possible for all boards
unfortunately). For those with board-enables we could reuse that
table and enhance/add board-enables, whether that's a good idea
is another issue.

For boards that cannot be autodetected we should at least have a table
of the max. supported ROM chip size, which can be printed in
"flashrom -L" and in the wiki.

Uwe.