[AMDGPU] Make a few more tests default COV agnostic (#78926)

GitOrigin-RevId: 4897b9888f11023bde363fb7dcebea440a0a13e9
diff --git a/test/ELF/lto/amdgcn-oses.ll b/test/ELF/lto/amdgcn-oses.ll
index a2f25cd..0fd0ce4 100644
--- a/test/ELF/lto/amdgcn-oses.ll
+++ b/test/ELF/lto/amdgcn-oses.ll
@@ -15,7 +15,7 @@
 ; RUN: llvm-readobj --file-headers %t/mesa3d.so | FileCheck %s --check-prefixes=GCN,NON-AMDHSA,MESA3D
 
 ; AMDHSA: OS/ABI: AMDGPU_HSA (0x40)
-; AMDHSA: ABIVersion: 2
+; AMDHSA: ABIVersion: 3
 
 ; AMDPAL: OS/ABI: AMDGPU_PAL (0x41)
 ; MESA3D: OS/ABI: AMDGPU_MESA3D (0x42)
@@ -27,6 +27,9 @@
 target triple = "amdgcn-amd-amdhsa"
 target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
 
+!llvm.module.flags = !{!0}
+!0 = !{i32 1, !"amdgpu_code_object_version", i32 500}
+
 define void @_start() {
   ret void
 }