[llvm] [AMDGPU] Move renamedInGFX9 from TableGen to SIInstrInfo helper function/macro to free up a bit slot (PR #82787)

[Stanislav Mekhanoshin via llvm-commits]

rampitec wrote:

> Is this still necessary?

We are still short of these bits, even if we have solved immediate problem.

https://github.com/llvm/llvm-project/pull/82787