[llvm] [AArch64] Enable maximising scalable vector bandwidth (PR #166748)

[Shunsuke Watanabe via llvm-commits]

s-watanabe314 wrote:

I re-checked the output and there were no issues. I am truly sorry for taking up your time. Thank you very much for your very prompt response.

https://github.com/llvm/llvm-project/pull/166748