[llvm] [AArch64] Disable Pre-RA Scheduler for Neoverse V2 (PR #127784)

[Cullen Rhodes via llvm-commits]

c-rhodes wrote:

> But it appears this might be running into problems at the moment. Disabling enableMachineScheduler() starts to enable some scheduling out of SDAG, and that might be hitting crashed now.

Could you clarify what you mean by "might be hitting crashed"? 

https://github.com/llvm/llvm-project/pull/127784