[llvm] [AMDGPU][test]added unique and sort options for update_mc_test_check script (PR #111769)

[Brox Chen via llvm-commits]

broxigarchen wrote:

> Adding more reviewers to seek a wider consensus on sorting MC tests throughout

Discussed offline with Joe and Ivan. The dasm sorting might not be very useful right now when sorted with hex input, and we might not need it after dasm test are merged into asm test.

For this patch, drop the support of sorting for dasm test. Added a error message so that script error out if dasm test is passed with --sort

https://github.com/llvm/llvm-project/pull/111769