We have tons of file types now that can be safely extracted.
It's pretty much only stages and payloads that aren't.
Change-Id: Ibf58a2c721f863d654537850c6f93d68a8a5bbeb
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/11360
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>