Update all of the license headers to make sure they are compliant
with coreboot's license header policy.
Change-Id: Id6d11d1cea3ebde4adf63e3d98ac603d85591d5b
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/14331
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>