[profiler] Default activities value (#51561)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/51561
Using CPU as a default activities value
https://github.com/pytorch/pytorch/issues/51337
Test Plan: Imported from OSS
Reviewed By: ngimel
Differential Revision: D26198910
Pulled By: ilia-cher
fbshipit-source-id: 7d7b227059a8eb48dc600a5ec077dd811fd9c8b4
