[llvm] [AMDGPU] Make gfx11 vop1 disassembler tests use strict-whitespace (PR #84078)

[Jay Foad via llvm-commits]

jayfoad wrote:

> I guess this should also approve submitting such changes for other disasm tests without review.

Yes I think that's fine.

https://github.com/llvm/llvm-project/pull/84078