v4.52.2

We had to revert #37877 because of a missing flag that was overriding the device map. We re-introduced the changes because they allow native 3D parallel training in Transformers. Sorry everyone for the troubles! 🤗

• Clearer error on import failure (#38257) by @LysandreJik
• Verified tp plan should not be NONE (#38255) by @NouamaneTazi and @ArthurZucker