Tracking `moving TSL to XLA` on PyTorch/XLA

[ManfeiBai]

🚀 Feature

OpenXLA proposed to move TSL to XLA, and there would be change in PyTorch/XLA to include this moving: change @tsl to @xla/tsl

Motivation

OpenXLA proposal: openxla/community#100

Pitch

• PyTorch/XLA would confirm locally first in a list;
• PyTorch/XLA would have a list of PRs contain per moving change to run CI test before OpenXLA migrate per change
• PyTorch/XLA include the new change by OpenXLA-pin update after the change

cc @miladm @ddunl

[ysiraichi]

@ManfeiBai I'm closing this issue, since it looks like this was already merged.
Feel free to re-open this issue if needed.