Since the end result of a BSD licensed bionic is explicitly permitted by the Linux Kernel COPYING file, as Bradly Kuhn and others have pointed out, there's no real story here. (Well, except for one competitor trying to FUD another).
There is a technical question about whether the methods Google chose to use on the header files are the correct ones ... and it's an important one for compliance people to think about. However, practically, if anyone tried to take this to court, a judge would ask what the damages and remedy were. The damages are essentially zero (because the end result is permitted) and the remedy would likely be to go back and get the method right with possibly a wrist slap if the company in question hadn't tried to do the right thing (which likely wouldn't apply in the Google case because they had).