tree: drop last paragraph of GPL copyright header from new files

This continues what was done in commit a73b93157f2
(tree: drop last paragraph of GPL copyright header)

Change-Id: Ifb8d2d13f7787657445817bdde8dc15df375e173
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12914
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
122 files changed