Update cudnn_frontend submodule to 1.6.1 to patch some minor bugfixes and compiler fixes.
# Bug fix
* Fixed an issue where custom dropout mask was not correctly applied.
* Added -fvisibility=hidden for the pip wheels generated to avoid symbol conflicts with other modules that use cudnn frontend.
* Fixed an issue in sdpa operation which when deserialized will lead to numerical mismatches.
* Fixed an issue in sdpa fp8 fprop operation (in inference mode).
# Samples
* Added a new sample to showcase how a custom dropout mask can be applied to a sdpa operation.
* Added a sample to showcase convolutions on large (c * d * h * w > 2 **31) tensors.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/134007
Approved by: https://github.com/eqy
c9c84ae3ee