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

[Stanislav Mekhanoshin via llvm-commits]

rampitec wrote:

It also has some progression in disasm, but that I guess is because I have specialized some operand classes. This can be done with just a part of the patch, I think.

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