[llvm] [AArch64][GlobalISel] Legalize G_SHUFFLE_VECTOR for Odd-Sized Vectors (PR #83038)

[Caslyn Tonelli via llvm-commits]

Caslyn wrote:

Hi @chuongg3 - this change is breaking on the Fuchsia builder: https://lab.llvm.org/staging/#/builders/187/builds/1695.

Can you please revert while addressing the test failure?

https://github.com/llvm/llvm-project/pull/83038