Auto merge of #110285 - KisaragiEffective:sync-stdarch, r=Amanieu

stdarch: update submodule

We need [this commit](rust-lang/stdarch@cf3deea) introduced by [stdarch#1411](rust-lang/stdarch#1411) in order to merge #110189.

Note to myself: `git pull && git submodule update --remote library/stdarch`

Author: bors