[llvm] [AMDGPU][test] Fix the wrong os names in triple. NFC (PR #93501)

[Matt Arsenault via llvm-commits]

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@@ -1,38 +1,8 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -mtriple=amdgcn-amd-hsa -mcpu=gfx900 -mattr=-architected-sgprs -global-isel=0 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9 %s
-; RUN: llc -mtriple=amdgcn-amd-hsa -mcpu=gfx900 -mattr=-architected-sgprs -global-isel=1 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9 %s
-; RUN: llc -mtriple=amdgcn-amd-hsa -mcpu=gfx900 -mattr=+architected-sgprs -global-isel=0 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9ARCH-SDAG %s
-; RUN: llc -mtriple=amdgcn-amd-hsa -mcpu=gfx900 -mattr=+architected-sgprs -global-isel=1 -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9ARCH-GISEL %s
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arsenm wrote:

These probably were intended to be amdgcn-amd-amdpal, there is lost coverage here now without flipping the architecture-sgprs feature 

https://github.com/llvm/llvm-project/pull/93501