libevdev: update to _FORTIFY_SOURCE=3 Since this project explicitly specifies its FORTIFY level, update it to the level CrOS wants to move to. This isn't _removed_, since it's copied from a template file, and consistency with that seems useful. BUG=b:288411201 TEST=CQ+1 Change-Id: I310bc3d0871ab4c2c157be94544f3dd949e1c8a0 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/libevdev/+/4708107 Tested-by: George Burgess <[email protected]> Reviewed-by: Sean O'Brien <[email protected]> Commit-Queue: George Burgess <[email protected]>