Reapply "perf: Disallow mis-matched inherited group reads"

This reverts commit 9c20bfd6.

It's needed back in the tree as it fixes a real issue, and it turns out
to nicely fit into an unused slot within the structure, so there's no
ABI breakage.

Update the .xml file with the new structure field:

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 1 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

'struct perf_event at perf_event.h:564:1' changed:
  type size hasn't changed
  1 data member insertion:
    'unsigned int group_generation', at offset 1120 (in bits) at perf_event.h:601:1
  1242 impacted interfaces

Bug: 307236803
Change-Id: I921c19d115869d8b0517d44d271d56d557da4167
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>