[CIR][AMDGPU] Add module flags for AMDGPU target using amendOperation of CIRDialectLLVMIRTranslationInterface (#186073) Add the amendOperation override to handle CIR dialect attributes during MLIR-to-LLVM IR translation. This dispatches to amendModule for ModuleOp, enabling module metadata. This PR also adds support to emit AMDGPU-specific module flags amdhsa_code_object_version and amdgpu_printf_kind to match OGCG behavior. In CIRGenModule, the flags are stored as CIR module attributes: cir.amdhsa_code_object_version (integer) cir.amdgpu_printf_kind (string: "hostcall" or "buffered") During lowering to LLVM IR (in LowerToLLVMIR.cpp), these attributes are converted to LLVM module flags. Upstreaming basic changes from clangIR PRs: https://github.com/llvm/clangir/commit/61e9ebd9f80393a0d6d792142642e8edddbe1adc https://github.com/llvm/clangir/pull/768 https://github.com/llvm/clangir/pull/773 https://github.com/llvm/clangir/pull/2100
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