Skip dynamo when inside a functorch context (#118901)
Summary:
X-link: https://github.com/pytorch/pytorch/pull/118901
Approved by: https://github.com/zou3519
Reviewed By: atalman
Differential Revision: D53498324
Pulled By: jansel
fbshipit-source-id: 56f6cfe9220be89cfb0197a0f18f0e904d5942e3
