Re-generated group kernels

This should be a null operation, but I had to fix copyright
years in python scripts and it had the following effects:
* removed some debugging printf statements in GB C kernels
* minor whitespace change now consistent between template and output

Change-Id: I3c3fe9be625ca4f7ade6871fc105fd80899e5a70
Merge "Re-generated group kernels" into release-4-6