[llvm] [AMDGPU][ASAN] Remove amdgpu-no-flat-scratch-init attribute from lowered kernels in amdgpu-sw-lower-lds pass (PR #160541)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> LLVM IR of __asan_malloc_impl has generic pointers accessing private memory

I think it would be better to change the implementation to make sure that is not possible 

https://github.com/llvm/llvm-project/pull/160541