[AMDGPU][mc] Fix AddressSanitizer leftover issue in gfx7_asm_all test

Issue occurs when assembling "ds_ordered_count v0, v0 gds".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294004 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed