[llvm] [AMDGPU] Fix .Lfunc_end label placement (PR #127549)

[Stanislav Mekhanoshin via llvm-commits]

rampitec wrote:

I wish to even understand how is that possible to get a sub of an address in .rodata and .code. These may be parsecs apart, and we only would know after it is mapped to memory after it is actually loaded.

https://github.com/llvm/llvm-project/pull/127549