Update license boilerplate text in source code files

Normally we don't do this, but enough changes have accumulated that
we're doing a tree-wide one-off update of the name & style.

BUG=chromium:1098010
TEST=`repo upload` works

Change-Id: I46ce72ad87b297683cf87561af8d069c08ee8cb1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mttools/+/3891482
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Harry Cutts <hcutts@chromium.org>
54 files changed