[llvm] [mlir] [mlir][gpu] Change GPU modules to globals (PR #135478)

[Valentin Clement バレンタイン クレメン via llvm-commits]

clementval wrote:

Could the constructor be added/ not added based on a pass option? We are using the generated binary but we rely on a different runtime to load the module so in our case we would like to not generate it. 

https://github.com/llvm/llvm-project/pull/135478