[Bugfix] Fix GDN FLA kernel crashes with NULL_BLOCK_ID=0 CUDA graph padding (#39064)
Signed-off-by: Vibhav Agarwal <vibhavagarwal5@gmail.com>
Co-authored-by: vibhav-agarwal <vibhav.agarwal@glance.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>