[Metal] Use MPSNNNeuronDescriptor for Mac Catalyst Target (#73718)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73718
We can't use fusedNeurons for Conv and Linear for iOS builds because we still need to support iOS 11.0 for Messenger.
ghstack-source-id: 150591225
Test Plan: Sandcastle
Reviewed By: arhelmus
Differential Revision: D34593022
fbshipit-source-id: 7fb4a9f085d77784640eb9f02b80f0dba769f5ed
(cherry picked from commit 412499e400cc552e0d5ed7c79dc0a594ae017c88)
