[coreboot-gerrit] Change in coreboot[master]: src: Drop "This file is part of the coreboot project" lines

[Arthur Heymans (Code Review)]

Attention is currently required from: Anjaneya "Reddy" Chagam, Jonathan Zhang, Johnny Lin, Angel Pons, Morgan Jang, Andrey Petrov, Kyösti Mälkki, Patrick Rudolph.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/53976 )

Change subject: src: Drop "This file is part of the coreboot project" lines
......................................................................

Patch Set 1: Code-Review+2