[llvm] [AMDGPU] Allow allocation of lo128 registers from all banks (PR #172614)

[Stanislav Mekhanoshin via llvm-commits]

rampitec wrote:

Then when I say we do not form fmaak/fmamk since gfx11 I mean this:

https://github.com/llvm/llvm-project/pull/127240/files#diff-744f96b5d6f7f2ed21a65e4b3717f9bf26b5fbaad0aeb6c043d49d8b3458409eR3651

https://github.com/llvm/llvm-project/pull/172614