stdarch: update submodule
We need [this commit](cf3deeae3a
) introduced by [stdarch#1411](https://github.com/rust-lang/stdarch/pull/1411) in order to merge #110189.
Note to myself: `git pull && git submodule update --remote library/stdarch`
stdarch: update submodule
We need [this commit](cf3deeae3a
) introduced by [stdarch#1411](https://github.com/rust-lang/stdarch/pull/1411) in order to merge #110189.
Note to myself: `git pull && git submodule update --remote library/stdarch`